activeadmin vulnerable to stored persistent cross-site scripting (XSS) in dynamic form legends

Exploitation

No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.

CVSS

7.2 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

EPSS

• CVE-2024-37031: 0.35% estimated exploitation activity in the next 30 days; percentile 28.89 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.

As published by the source; long descriptions are shortened.

Impact Users settings their active admin form legends dynamically may be vulnerable to stored XSS, as long as its value can be injected directly by a malicious user. For example: A public web application allows users to create entities with arbitrary names. Active Admin is used to administrate these entities through a private backend. The form to edit these entities in the private backend has the following shape (note the dynamic name value dependent on an attribute of the resource): Then a malicious user could create an entity with a payload that would get executed in the active admin administrator's browser. Both form blocks with an implicit or explicit name (i.e., both form resource.name or form name: resource.name would suffer from the problem), where the value of the name can be arbitrarily set by non admin users. Patches The problem has been fixed in ActiveAdmin 3.2.2 and ActiveAdmin 4.0.0.beta7. Workarounds Users can workaround this problem without upgrading by explicitly…

Published by the source

2 Jun 2024, 22:32 UTC

Last modified by the source

28 Oct 2024, 12:37 UTC

Source last checked

26 Oct 2026, 15:48 UTC

1. Revision 1 · created · 26 Oct 2026

   Published from ghsa record GHSA-9mg6-x45v-hcfm

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# Patch Next advisory brief: CVE-2024-37031

Advisory: activeadmin vulnerable to stored persistent cross-site scripting (XSS) in dynamic form legends
IDs: CVE-2024-37031, GHSA-9mg6-x45v-hcfm
Record: https://patchnext.com/advisories/cve-2024-37031 (revision 1, source checked 26 Oct 2026, 15:48 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: High (CVSS 7.2)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: activeadmin 4.0.0.beta7, 3.2.2. A vendor fix does not mean a deployment is fixed.

## Affected components
- RubyGems activeadmin: affected < 3.2.2; >= 4.0.0.beta1, < 4.0.0.beta7; fixed in 4.0.0.beta7, 3.2.2

## Suggested inspection (read-only)
- RubyGems activeadmin: check the installed version with your package manager.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on activeadmin.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://github.com/advisories/GHSA-9mg6-x45v-hcfm (GitHub-reviewed advisory GHSA-9mg6-x45v-hcfm lists affected ranges: RubyGems activeadmin >=0 =4.0.0.beta1 <4.0.0.beta7)

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