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Fencer Vulns
medium 4.3

CVE-2020-29605 json

MantisBT Incorrect Authorization in bug_actiongroup_page.php

published 2021-01-29 5 y ago modified 2026-06-17 4 mo ago also GHSA-pgg9-mmcg-8mxp , EUVD-2020-21966

cvss
4.3
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.9%
EPSS 0.9% chance of exploitation in 30 days, percentile 60%
public exploits
0
none known

Summary

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 bug_arr[]= in a crafted bug_actiongroup_page.php URL. (The target Issues can have Private view status, or belong to a private Project.)

Patch / fix

  • packagist mantisbt/mantisbt 2.24.4
  • mantisbt mantisbt 2.24.4

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2020-29605 updated

mantis: Information disclosure via crafted bug_actiongroup_page.php URL

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.90% chance of exploitation in the next 30 days, higher than 60% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • mantisbt.org https://mantisbt.org/bugs/view.php?id=27357 referenced PoC, tagged "exploit" by a source, unverified
  • mantisbt.org https://mantisbt.org/bugs/view.php?id=27727 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 4.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
NVD 2.0 4.0 AV:N/AC:L/Au:S/C:P/I:N/A:N

Affected packages

ecosystem package affected fixed in
packagist mantisbt/mantisbt
<2.24.4
2.24.4

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.