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Low, CVSS 2.3

Apereo CAS code injection vulnerability

CVE-2025-3984GHSA-37pq-893f-g7q5

What to do

Vendor response not established. Follow the primary source's mitigation guidance and check back for a fix.

This page has no inventory attached, so it cannot say whether you are affected. A vendor fix is not proof that your deployment is fixed.

Affected packages

  • Maven org.apereo.cas:cas-management-webapp-support

    Affected
    <= 5.2.6
    Fixed in
    no fixed version recorded

Sources

Severity and exploitation
Exploitation
No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.
CVSS 4.0
2.3 · CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N · score source
EPSS
  • CVE-2025-3984: 0.49% estimated exploitation activity in the next 30 days; percentile 42.44 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.
Source description

As published by the source; long descriptions are shortened.

A vulnerability was found in Apereo CAS 5.2.6 and classified as critical. Affected by this issue is the function saveService of the file cas-5.2.6\webapp-mgmt\cas-management-webapp-support\src\main\java\org\apereo\cas\mgmt\services\web\RegisteredServiceSimpleFormController.java of the component Groovy Code Handler. The manipulation leads to code injection. The attack may be launched remotely. The complexity of an attack is rather high. The exploitation is known to be difficult. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Dates and revisions
Published by the source
Last modified by the source
Source last checked
  1. Revision 1 · created ·

    Published from ghsa record GHSA-37pq-893f-g7q5

Agent brief

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# Patch Next advisory brief: CVE-2025-3984

Advisory: Apereo CAS code injection vulnerability
IDs: CVE-2025-3984, GHSA-37pq-893f-g7q5
Record: https://patchnext.com/advisories/cve-2025-3984 (revision 1, source checked 26 Oct 2026, 16:41 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Low (CVSS 2.3)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor response not established. A vendor fix does not mean a deployment is fixed.

## Affected components
- Maven org.apereo.cas:cas-management-webapp-support: affected <= 5.2.6

## Suggested inspection (read-only)
- Maven org.apereo.cas:cas-management-webapp-support: check the installed version with your package manager.

## Supported action
No complete vendor fix is recorded. Follow the primary source's mitigation guidance and check this record again before closing anything.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on org.apereo.cas:cas-management-webapp-support.
- 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-37pq-893f-g7q5 (GitHub-reviewed advisory GHSA-37pq-893f-g7q5 lists affected ranges: Maven org.apereo.cas:cas-management-webapp-support >=0 <=5.2.6)

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