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MantisBT Incorrect Authorization in bug_actiongroup_page.php

CVE-2020-29605GHSA-pgg9-mmcg-8mxp

What to do

Vendor fix available. Upgrade each affected package to the fixed version on its release line (mantisbt/mantisbt 2.24.4), redeploy, then verify what is actually installed.

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.

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Affected packages

Sources

Severity and exploitation
Exploitation
No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.
CVSS
not scored
EPSS
  • CVE-2020-29605: 0.90% estimated exploitation activity in the next 30 days; percentile 59.82 (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.

An issue was discovered in MantisBT before 2.24.4. Due to insufficient access-level checks, any logged-in user allowed to perform Group Actions can get access to the Summary fields of private Issues via bugarr[]= in a crafted bugactiongrouppage.php URL. (The target Issues can have Private view status, or belong to a private Project.)

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

    Published from ghsa record GHSA-pgg9-mmcg-8mxp

Agent brief

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# Patch Next advisory brief: CVE-2020-29605

Advisory: MantisBT Incorrect Authorization in bug_actiongroup_page.php
IDs: CVE-2020-29605, GHSA-pgg9-mmcg-8mxp
Record: https://patchnext.com/advisories/cve-2020-29605 (revision 1, source checked 26 Oct 2026, 14:33 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Unrated
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: mantisbt/mantisbt 2.24.4. A vendor fix does not mean a deployment is fixed.

## Affected components
- Packagist mantisbt/mantisbt: affected < 2.24.4; fixed in 2.24.4

## Suggested inspection (read-only)
- Packagist mantisbt/mantisbt: 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 mantisbt/mantisbt.
- 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-pgg9-mmcg-8mxp (GitHub-reviewed advisory GHSA-pgg9-mmcg-8mxp lists affected ranges: Packagist mantisbt/mantisbt >=0 <2.24.4)

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