Common Weakness Enumeration
CWE-807
AllowedReliance on Untrusted Inputs in a Security Decision
Abstraction: Base · Status: Incomplete
The product uses a protection mechanism that relies on the existence or values of an input, but the input can be modified by an untrusted actor in a way that bypasses the protection mechanism.
129 vulnerabilities reference this CWE, most recent first.
CVE-2021-36777 (GCVE-0-2021-36777)
Vulnerability from cvelistv5 – Published: 2022-03-09 16:26 – Updated: 2024-09-16 22:03
VLAI
EPSS
VEX
Title
login-proxy sends password to attacker-provided domain
Summary
A Reliance on Untrusted Inputs in a Security Decision vulnerability in the login proxy of the openSUSE Build service allowed attackers to present users with a expected login form that then sends the clear text credentials to an attacker specified server. This issue affects: openSUSE Build service login-proxy-scripts versions prior to dc000cdfe9b9b715fb92195b1a57559362f689ef.
Severity
8.1 (High)
CWE
- CWE-807 - Reliance on Untrusted Inputs in a Security Decision
Assigner
suse
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://bugzilla.suse.com/show_bug.cgi?id=1191209 | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| openSUSE | Build service |
Affected:
login-proxy-scripts , < dc000cdfe9b9b715fb92195b1a57559362f689ef
(custom)
|
Date Public
2022-02-23 00:00
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CVE-2021-31999 (GCVE-0-2021-31999)
Vulnerability from cvelistv5 – Published: 2021-07-15 08:55 – Updated: 2024-09-17 02:26
VLAI
EPSS
VEX
Title
Rancher: Privilege escalation vulnerability via malicious Connection header
Summary
A Reliance on Untrusted Inputs in a Security Decision vulnerability in Rancher allows users in the cluster to act as others users in the cluster by forging the "Impersonate-User" or "Impersonate-Group" headers. This issue affects: Rancher versions prior to 2.5.9. Rancher versions prior to 2.4.16.
Severity
8.8 (High)
CWE
- CWE-807 - Reliance on Untrusted Inputs in a Security Decision
Assigner
suse
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://bugzilla.suse.com/show_bug.cgi?id=1187084 | x_refsource_CONFIRM |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Rancher | Rancher |
Affected:
Rancher , < 2.5.9
(custom)
|
|
| Rancher | SUSE Linux Enterprise Server 15 |
Affected:
Rancher , < 2.4.16
(custom)
|
Date Public
2021-07-15 00:00
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CVE-2021-29479 (GCVE-0-2021-29479)
Vulnerability from cvelistv5 – Published: 2021-06-29 14:35 – Updated: 2024-08-03 22:11
VLAI
EPSS
VEX
Title
Cached redirect poisoning via X-Forwarded-Host header
Summary
Ratpack is a toolkit for creating web applications. In versions prior to 1.9.0, a user supplied `X-Forwarded-Host` header can be used to perform cache poisoning of a cache fronting a Ratpack server if the cache key does not include the `X-Forwarded-Host` header as a cache key. Users are only vulnerable if they do not configure a custom `PublicAddress` instance. For versions prior to 1.9.0, by default, Ratpack utilizes an inferring version of `PublicAddress` which is vulnerable. This can be used to perform redirect cache poisoning where an attacker can force a cached redirect to redirect to their site instead of the intended redirect location. The vulnerability was patched in Ratpack 1.9.0. As a workaround, ensure that `ServerConfigBuilder::publicAddress` correctly configures the server in production.
Severity
CWE
- CWE-807 - Reliance on Untrusted Inputs in a Security Decision
Assigner
GitHub_M
CNA
References
2 references
| URL | Tags |
|---|---|
| https://portswigger.net/web-security/web-cache-po… | x_refsource_MISC |
| https://github.com/ratpack/ratpack/security/advis… | x_refsource_CONFIRM |
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CVE-2020-5252 (GCVE-0-2020-5252)
Vulnerability from cvelistv5 – Published: 2020-03-23 23:05 – Updated: 2024-08-04 08:22
VLAI
EPSS
VEX
Title
Malicious package may avoid detection in python auditing
Summary
The command-line "safety" package for Python has a potential security issue. There are two Python characteristics that allow malicious code to “poison-pill” command-line Safety package detection routines by disguising, or obfuscating, other malicious or non-secure packages. This vulnerability is considered to be of low severity because the attack makes use of an existing Python condition, not the Safety tool itself. This can happen if: You are running Safety in a Python environment that you don’t trust. You are running Safety from the same Python environment where you have your dependencies installed. Dependency packages are being installed arbitrarily or without proper verification. Users can mitigate this issue by doing any of the following: Perform a static analysis by installing Docker and running the Safety Docker image: $ docker run --rm -it pyupio/safety check -r requirements.txt Run Safety against a static dependencies list, such as the requirements.txt file, in a separate, clean Python environment. Run Safety from a Continuous Integration pipeline. Use PyUp.io, which runs Safety in a controlled environment and checks Python for dependencies without any need to install them. Use PyUp's Online Requirements Checker.
Severity
5 (Medium)
CWE
- CWE-807 - Reliance on Untrusted Inputs in a Security Decision
Assigner
GitHub_M
CNA
References
3 references
| URL | Tags |
|---|---|
| https://github.com/pyupio/safety/security/advisor… | x_refsource_CONFIRM |
| https://pyup.io/posts/patched-vulnerability/ | x_refsource_CONFIRM |
| https://github.com/akoumjian/python-safety-vuln | x_refsource_CONFIRM |
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CVE-2019-25711 (GCVE-0-2019-25711)
Vulnerability from cvelistv5 – Published: 2026-04-12 12:28 – Updated: 2026-04-13 15:13
VLAI
EPSS
VEX
Title
SpotFTP Password Recover 2.4.2 Denial of Service via Name Field
Summary
SpotFTP Password Recover 2.4.2 contains a denial of service vulnerability that allows local attackers to crash the application by supplying an oversized buffer in the Name field during registration. Attackers can generate a 256-byte payload, paste it into the Name input field, and trigger a crash when submitting the registration code.
Severity
6.2 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-13 15:11 UTC
CWE
- CWE-807 - Reliance on Untrusted Inputs in a Security Decision
Assigner
VulnCheck
CNA
References
2 references
| URL | Tags |
|---|---|
| https://www.exploit-db.com/exploits/46088 | exploit |
| https://www.vulncheck.com/advisories/spotftp-pass… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| NSauditor | SpotFTP Password Recover |
Affected:
2.4.2
|
Date Public
2019-01-07 00:00
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CVE-2019-25621 (GCVE-0-2019-25621)
Vulnerability from cvelistv5 – Published: 2026-03-23 13:48 – Updated: 2026-03-25 14:11
VLAI
EPSS
VEX
Title
Pixel Studio 2.17 Denial of Service via Malformed Input
Summary
Pixel Studio 2.17 contains a denial of service vulnerability that allows local attackers to crash the application by providing malformed input through the keyboard interface. Attackers can trigger the vulnerability by entering arbitrary characters, causing the application to become unresponsive or terminate abnormally.
Severity
6.2 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-25 14:09 UTC
CWE
- CWE-807 - Reliance on Untrusted Inputs in a Security Decision
Assigner
VulnCheck
CNA
References
4 references
| URL | Tags |
|---|---|
| https://www.exploit-db.com/exploits/46127 | exploit |
| http://www.pixarra.com/ | product |
| http://www.pixarra.com/uploads/9/4/6/3/94635436/t… | product |
| https://www.vulncheck.com/advisories/pixel-studio… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Pixarra | Pixel Studio |
Affected:
2.17
|
Date Public
2019-01-11 00:00
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CVE-2019-25594 (GCVE-0-2019-25594)
Vulnerability from cvelistv5 – Published: 2026-03-22 13:38 – Updated: 2026-03-24 15:14
VLAI
EPSS
VEX
Title
ASPRunner.NET 10.1 Denial of Service via Table Name Field
Summary
ASPRunner.NET 10.1 contains a denial of service vulnerability that allows local attackers to crash the application by supplying an excessively long string in the table name field. Attackers can input a buffer of 10000 characters in the table name parameter during database table creation to trigger an application crash.
Severity
6.2 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-24 14:01 UTC
CWE
- CWE-807 - Reliance on Untrusted Inputs in a Security Decision
Assigner
VulnCheck
CNA
References
4 references
| URL | Tags |
|---|---|
| https://www.exploit-db.com/exploits/46823 | exploit |
| https://xlinesoft.com/ | product |
| https://xlinesoft.com/asprunnernet/download.htm | product |
| https://www.vulncheck.com/advisories/asprunner-ne… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Xlinesoft | ASPRunner.NET |
Affected:
10.1
cpe:2.3:a:xlinesoft:phprunner:10.1:*:*:*:*:*:*:* |
Date Public
2019-05-09 00:00
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CVE-2019-25544 (GCVE-0-2019-25544)
Vulnerability from cvelistv5 – Published: 2026-03-21 12:46 – Updated: 2026-03-24 14:31
VLAI
EPSS
VEX
Title
Pidgin 2.13.0 Denial of Service via Malformed Username
Summary
Pidgin 2.13.0 contains a denial of service vulnerability that allows local attackers to crash the application by providing an excessively long username string during account creation. Attackers can input a buffer of 1000 characters in the username field and trigger a crash when joining a chat, causing the application to become unavailable.
Severity
6.2 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-24 14:30 UTC
CWE
- CWE-807 - Reliance on Untrusted Inputs in a Security Decision
Assigner
VulnCheck
CNA
References
3 references
| URL | Tags |
|---|---|
| https://www.exploit-db.com/exploits/46930 | exploit |
| https://pidgin.im/ | product |
| https://www.vulncheck.com/advisories/pidgin-denia… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Pidgin | Pidgin |
Affected:
2.13.0
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Date Public
2019-05-27 00:00
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CVE-2017-0887 (GCVE-0-2017-0887)
Vulnerability from cvelistv5 – Published: 2017-04-05 20:00 – Updated: 2024-08-05 13:18
VLAI
EPSS
VEX
Summary
Nextcloud Server before 9.0.55 and 10.0.2 suffers from a bypass in the quota limitation. Due to not properly sanitizing values provided by the `OC-Total-Length` HTTP header an authenticated adversary may be able to exceed their configured user quota. Thus using more space than allowed by the administrator.
Severity
No CVSS data available.
CWE
- CWE-807 - Reliance on Untrusted Inputs in a Security Decision (CWE-807)
Assigner
hackerone
CNA
References
2 references
| URL | Tags |
|---|---|
| https://nextcloud.com/security/advisory/?id=nc-sa… | x_refsource_CONFIRM |
| https://hackerone.com/reports/173622 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Nextcloud | Nextcloud Server |
Affected:
All versions before 9.0.55 and 10.0.2
|
Date Public
2017-02-05 00:00
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Mitigation MIT-14
Architecture and Design
Strategy: Attack Surface Reduction
- Store state information and sensitive data on the server side only.
- Ensure that the system definitively and unambiguously keeps track of its own state and user state and has rules defined for legitimate state transitions. Do not allow any application user to affect state directly in any way other than through legitimate actions leading to state transitions.
- If information must be stored on the client, do not do so without encryption and integrity checking, or otherwise having a mechanism on the server side to catch tampering. Use a message authentication code (MAC) algorithm, such as Hash Message Authentication Code (HMAC) [REF-529]. Apply this against the state or sensitive data that has to be exposed, which can guarantee the integrity of the data - i.e., that the data has not been modified. Ensure that a strong hash function is used (CWE-328).
Mitigation MIT-4.2
Architecture and Design
Strategy: Libraries or Frameworks
- Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
- With a stateless protocol such as HTTP, use a framework that maintains the state for you.
- Examples include ASP.NET View State [REF-756] and the OWASP ESAPI Session Management feature [REF-45].
- Be careful of language features that provide state support, since these might be provided as a convenience to the programmer and may not be considering security.
Mitigation MIT-15
Architecture and Design
For any security checks that are performed on the client side, ensure that these checks are duplicated on the server side, in order to avoid CWE-602. Attackers can bypass the client-side checks by modifying values after the checks have been performed, or by changing the client to remove the client-side checks entirely. Then, these modified values would be submitted to the server.
Mitigation MIT-16
Operation
Implementation
Strategy: Environment Hardening
When using PHP, configure the application so that it does not use register_globals. During implementation, develop the application so that it does not rely on this feature, but be wary of implementing a register_globals emulation that is subject to weaknesses such as CWE-95, CWE-621, and similar issues.
Mitigation MIT-6
Architecture and Design
Implementation
Strategy: Attack Surface Reduction
- Understand all the potential areas where untrusted inputs can enter your software: parameters or arguments, cookies, anything read from the network, environment variables, reverse DNS lookups, query results, request headers, URL components, e-mail, files, filenames, databases, and any external systems that provide data to the application. Remember that such inputs may be obtained indirectly through API calls.
- Identify all inputs that are used for security decisions and determine if you can modify the design so that you do not have to rely on submitted inputs at all. For example, you may be able to keep critical information about the user's session on the server side instead of recording it within external data.
No CAPEC attack patterns related to this CWE.