CVE-2026-42205 (GCVE-0-2026-42205)
Vulnerability from cvelistv5
Published
2026-05-08 21:26
Modified
2026-05-08 21:26
Severity ?
VLAI Severity ?
EPSS score ?
Summary
Avo is a framework to create admin panels for Ruby on Rails apps. Prior to version 3.31.2, a broken access control vulnerability was identified in the ActionsController of the Avo framework. Due to insecure action lookup logic, an authenticated user can execute any Action class (descendants of Avo::BaseAction) on any resource, even if the action is not registered for that specific resource. This leads to Privilege Escalation and unauthorized data manipulation across the entire application. This issue has been patched in version 3.31.2.
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
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{
"containers": {
"cna": {
"affected": [
{
"product": "avo",
"vendor": "avo-hq",
"versions": [
{
"status": "affected",
"version": "\u003c 3.31.2"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Avo is a framework to create admin panels for Ruby on Rails apps. Prior to version 3.31.2, a broken access control vulnerability was identified in the ActionsController of the Avo framework. Due to insecure action lookup logic, an authenticated user can execute any Action class (descendants of Avo::BaseAction) on any resource, even if the action is not registered for that specific resource. This leads to Privilege Escalation and unauthorized data manipulation across the entire application. This issue has been patched in version 3.31.2."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-284",
"description": "CWE-284: Improper Access Control",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-639",
"description": "CWE-639: Authorization Bypass Through User-Controlled Key",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-05-08T21:26:44.743Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/avo-hq/avo/security/advisories/GHSA-qc5p-3mg5-9fh8",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/avo-hq/avo/security/advisories/GHSA-qc5p-3mg5-9fh8"
},
{
"name": "https://github.com/avo-hq/avo/releases/tag/v3.31.2",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/avo-hq/avo/releases/tag/v3.31.2"
}
],
"source": {
"advisory": "GHSA-qc5p-3mg5-9fh8",
"discovery": "UNKNOWN"
},
"title": "Avo: Broken Access Control: Unauthorized Execution of Arbitrary Action Classes Across Resources"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-42205",
"datePublished": "2026-05-08T21:26:44.743Z",
"dateReserved": "2026-04-25T05:04:37.027Z",
"dateUpdated": "2026-05-08T21:26:44.743Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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