Common Weakness Enumeration
CWE-639
AllowedAuthorization Bypass Through User-Controlled Key
Abstraction: Base · Status: Incomplete
The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.
2790 vulnerabilities reference this CWE, most recent first.
CVE-2026-101112 (GCVE-0-2026-101112)
Vulnerability from cvelistv5 – Published: 2026-09-29 17:00 – Updated: 2026-09-30 16:05
VLAI
EPSS
VEX
Title
Joomla Extension - balbooa.com - Unauthorized Deletion of Attachments in Balbooa Forms < 2.4.3.4
Summary
Joomla Extension - balbooa.com - Unauthorized Deletion of Attachments in Balbooa Forms < 2.4.3.4 - The public removeTmpAttachment action accepts an integer attachment ID and deletes the matching database row and file. The controller verifies a Joomla session token, but the model does not bind that ID to the session that uploaded the file, the current user, the form, the upload field, or the temporary state. Any guest can obtain a token for their own session, so the token prevents CSRF but does not authorize the target object.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-30 15:06 UTC
CWE
- CWE-639 - (Authorization Bypass Through User-Controlled Key)
Assigner
Joomla
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://www.balbooa.com/ | product |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| balbooa.com | Balbooa Forms extension for Joomla |
Affected:
1.0.0-2.4.3.3
|
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CVE-2026-101084 (GCVE-0-2026-101084)
Vulnerability from cvelistv5 – Published: 2026-09-27 20:49 – Updated: 2026-09-30 22:12
VLAI
EPSS
VEX
Title
obot before v0.21.1 Authorization Bypass via /mcp-connect
Summary
obot versions before v0.21.1 fail to enforce Access Control Rules on the /mcp-connect endpoint, allowing any authenticated user to connect to restricted MCP servers if they possess the server ID. Attackers can bypass authorization checks to access and manipulate sensitive backend systems through MCP tool calls using stored OAuth credentials.
Severity
9.6 (Critical)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-30 22:12 UTC
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
VulnCheck
CNA
References
2 references
| URL | Tags |
|---|---|
| https://github.com/obot-platform/obot/security/ad… | vendor-advisory |
| https://www.vulncheck.com/advisories/obot-before-… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| obot-platform | obot |
Affected:
0 , < 0.21.1
(semver)
Unaffected: 0.21.1 (semver) |
Date Public
2026-05-08 00:00
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CVE-2026-101033 (GCVE-0-2026-101033)
Vulnerability from cvelistv5 – Published: 2026-09-27 13:16 – Updated: 2026-09-30 16:59
VLAI
EPSS
VEX
Title
KitchenOwl through 0.7.10 IDOR via unchecked category ID
Summary
KitchenOwl through 0.7.10 fails to verify that category IDs belong to the caller's household in expense and item operations. Authenticated attackers can enumerate category IDs from other households to read their category names, budgets, and colors, breaking household isolation.
Severity
4.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-30 16:59 UTC
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
VulnCheck
CNA
References
7 references
| URL | Tags |
|---|---|
| https://github.com/TomBursch/kitchenowl/issues/1154 | issue-tracking |
| https://github.com/TomBursch/kitchenowl/pull/1155 | patchissue-tracking |
| https://github.com/TomBursch/kitchenowl/commit/c1… | patch |
| https://github.com/TomBursch/kitchenowl/blob/09aa… | technical-description |
| https://github.com/TomBursch/kitchenowl/blob/09aa… | technical-description |
| https://github.com/TomBursch/kitchenowl | product |
| https://www.vulncheck.com/advisories/kitchenowl-t… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| TomBursch | kitchenowl |
Affected:
0 , ≤ 0.7.10
(semver)
|
Date Public
2026-09-16 00:00
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CVE-2026-100897 (GCVE-0-2026-100897)
Vulnerability from cvelistv5 – Published: 2026-09-28 01:45 – Updated: 2026-10-01 13:58
VLAI
EPSS
VEX
Title
fuzui StudentInfo Password Change Endpoint moditypasswordstu authorization
Summary
A security vulnerability has been detected in fuzui StudentInfo up to fcc42a639ec7cef620651bfd0f07ebb660529e3f. The impacted element is an unknown function of the file /StudentInfo/StudentHandler/moditypasswordstu of the component Password Change Endpoint. Such manipulation of the argument sid/tid leads to authorization bypass. The attack can be executed remotely. This product implements a rolling release for ongoing delivery, which means version information for affected or updated releases is unavailable. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-01 13:58 UTC
Assigner
VulDB
CNA
References
4 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/410847 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/410847/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-100897 | third-party-advisory |
| https://vuldb.com/submit/919090 | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| fuzui | StudentInfo |
Affected:
fcc42a639ec7cef620651bfd0f07ebb660529e3f
cpe:2.3:a:fuzui:studentinfo:*:*:*:*:*:*:*:* |
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CVE-2026-100885 (GCVE-0-2026-100885)
Vulnerability from cvelistv5 – Published: 2026-09-27 22:45 – Updated: 2026-09-30 22:15 X_Open Source
VLAI
EPSS
VEX
Title
Krayin laravel-crm admin-config-setup API Endpoint CanInstall.php authorization
Summary
A vulnerability was found in Krayin laravel-crm up to 2.2.4. This affects an unknown function of the file packages/Webkul/Installer/src/Http/Middleware/CanInstall.php of the component admin-config-setup API Endpoint. The manipulation results in authorization bypass. The attack may be launched remotely. The exploit has been made public and could be used. Upgrading to version 2.2.5 mitigates this issue. The patch is identified as 89f2916b6a46ff91bd1999ce38158fa0de8b9490. Upgrading the affected component is recommended.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-30 22:15 UTC
Assigner
VulDB
CNA
References
9 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/410815 | vdb-entry |
| https://vuldb.com/vuln/410815/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-100885 | third-party-advisory |
| https://vuldb.com/submit/916597 | third-party-advisory |
| https://github.com/carlosalbertotuma/advisory/blo… | exploit |
| https://github.com/krayin/laravel-crm/pull/2614 | issue-trackingpatch |
| https://github.com/krayin/laravel-crm/commit/89f2… | patch |
| https://github.com/krayin/laravel-crm/releases/ta… | patch |
| https://github.com/krayin/laravel-crm/ | product |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Krayin | laravel-crm |
Affected:
2.2.0
Affected: 2.2.1 Affected: 2.2.2 Affected: 2.2.3 Affected: 2.2.4 Unaffected: 2.2.5 cpe:2.3:a:krayin:laravel-crm:*:*:*:*:*:*:*:* |
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CVE-2026-100878 (GCVE-0-2026-100878)
Vulnerability from cvelistv5 – Published: 2026-09-27 20:30 – Updated: 2026-09-28 13:02
VLAI
EPSS
VEX
Title
zhistaredu StarTraining authRole Endpoint SysUser.java SysUser.isAdmin authorization
Summary
A vulnerability was identified in zhistaredu StarTraining up to 3.8.1. Affected by this issue is the function SysUser.isAdmin of the file edu-common/src/main/java/com/edu/common/core/domain/entity/SysUser.java of the component authRole Endpoint. The manipulation of the argument userId/roleIds leads to authorization bypass. The attack is possible to be carried out remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-28 13:01 UTC
Assigner
VulDB
CNA
References
5 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/410808 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/410808/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-100878 | third-party-advisory |
| https://vuldb.com/submit/915510 | third-party-advisory |
| https://github.com/ArrestX/startraining-advisorie… | exploit |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| zhistaredu | StarTraining |
Affected:
3.8.0
Affected: 3.8.1 cpe:2.3:a:zhistaredu:startraining:*:*:*:*:*:*:*:* |
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CVE-2026-100688 (GCVE-0-2026-100688)
Vulnerability from cvelistv5 – Published: 2026-09-26 13:23 – Updated: 2026-10-08 15:21
VLAI
EPSS
VEX
Title
Budibase server before 3.45.0 Cross-Tenant Information Disclosure
Summary
Budibase server before 3.45.0 contains a cross-tenant information disclosure vulnerability in the GET /api/applications/:appId/appPackage endpoint that allows authenticated users to read another tenant's application metadata and source code. Attackers can supply a victim tenant's app id to retrieve sensitive application details including navigation structure, role names, internal screen URLs, JavaScript snippets, and user identifiers without authorization checks.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-28 16:37 UTC
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
VulnCheck
CNA
References
2 references
| URL | Tags |
|---|---|
| https://github.com/Budibase/budibase/security/adv… | vendor-advisory |
| https://www.vulncheck.com/advisories/budibase-ser… | third-party-advisory |
Impacted products
Date Public
2026-09-10 00:00
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CVE-2026-100679 (GCVE-0-2026-100679)
Vulnerability from cvelistv5 – Published: 2026-09-26 13:23 – Updated: 2026-09-28 18:03
VLAI
EPSS
VEX
Title
stoatchat before 0.15.5 MFA Bypass via Cross-Account Ticket
Summary
stoatchat before 0.15.5 fails to validate that MFA tickets belong to the authenticated user, allowing attackers to bypass MFA by using their own valid ticket with another user's session token. Attackers can obtain a ticket from their own account and use it with a victim's session token to disable TOTP, view recovery codes, or perform other sensitive operations without providing the victim's credentials.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-28 18:01 UTC
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
VulnCheck
CNA
References
2 references
| URL | Tags |
|---|---|
| https://github.com/stoatchat/stoatchat/security/a… | vendor-advisory |
| https://www.vulncheck.com/advisories/stoatchat-be… | third-party-advisory |
Impacted products
Date Public
2026-09-11 00:00
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CVE-2026-100670 (GCVE-0-2026-100670)
Vulnerability from cvelistv5 – Published: 2026-09-26 13:23 – Updated: 2026-09-30 14:57
VLAI
EPSS
VEX
Title
Grav CMS 2.0.14 through 2.0.24 Privilege Escalation via Blueprint Guard Bypass
Summary
Grav CMS 2.0.14 through 2.0.24 contains a privilege escalation vulnerability in the group and account blueprints. The access map is gated by a `security@: admin.super` guard that is resolved by the field's exact path, so a submitted flat dot-notation key such as `access.admin.super` (instead of the nested `access[admin][super]`) matches no blueprint rule, survives BlueprintSchema::filterArray() and flattening, and is written by FlexObject::update() via setNestedProperty(), which splits on `.` and reconstructs the nested value. An authenticated backend operator using the flex accounts backend who holds admin.users but not admin.super can therefore grant admin.super to their own account or to a group they belong to and escalate to full super-admin, gaining control over configuration, plugin and theme installation, the file manager, and all accounts. Fixed in 2.0.25, which drops any dotted key whose ancestor path is disabled or marked validate.ignore.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-30 14:57 UTC
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
VulnCheck
CNA
References
2 references
| URL | Tags |
|---|---|
| https://github.com/getgrav/grav/security/advisori… | vendor-advisory |
| https://www.vulncheck.com/advisories/grav-cms-2.0… | third-party-advisory |
Impacted products
Date Public
2026-09-09 00:00
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CVE-2026-100627 (GCVE-0-2026-100627)
Vulnerability from cvelistv5 – Published: 2026-09-26 13:23 – Updated: 2026-09-30 17:20
VLAI
EPSS
VEX
Title
Capgo bundle promotion API channel RBAC deny override bypass
Summary
Capgo (Cap-go/capgo.app) server backend Supabase functions contain an incorrect authorization flaw in the API-key bundle promotion path. The PUT /bundle endpoint, available to "all" and "write" API keys, dispatches to setChannel, which authorizes with checkPermission(c, 'channel.promote_bundle', { appId: body.app_id }) and omits the request's channel_id. Because the omitted scope field is passed to rbac_check_permission_direct as SQL NULL, and channel-scope override evaluation is gated on p_channel_id IS NOT NULL, per-channel allow/deny overrides are never evaluated. A principal holding app-level channel.promote_bundle (granted by default to the app_developer and app_uploader roles) can therefore promote a bundle to a channel for which an explicit per-channel deny override exists, updating public.channels.version for the supplied channel_id; the target channel is only validated after authorization. The issue is confirmed on main at commit de66fa51e7ff2f50283cc1455c3d80ab3eb0ae43 and likely earlier versions; no patched version is known at the time of publication.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-28 18:56 UTC
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
VulnCheck
CNA
References
2 references
| URL | Tags |
|---|---|
| https://github.com/Cap-go/capgo.app/security/advi… | vendor-advisory |
| https://www.vulncheck.com/advisories/capgo-bundle… | third-party-advisory |
Date Public
2026-09-09 00:00
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Mitigation
Architecture and Design
For each and every data access, ensure that the user has sufficient privilege to access the record that is being requested.
Mitigation
Architecture and Design
Implementation
Make sure that the key that is used in the lookup of a specific user's record is not controllable externally by the user or that any tampering can be detected.
Mitigation
Architecture and Design
Use encryption in order to make it more difficult to guess other legitimate values of the key or associate a digital signature with the key so that the server can verify that there has been no tampering.
No CAPEC attack patterns related to this CWE.