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Fencer Vulns
medium 6.5

CVE-2026-24420 json

phpMyFAQ: Attachment download allowed without dlattachment right (broken access control)

published 2026-01-23 9 mo ago modified 2026-06-17 4 mo ago also GHSA-7p9h-m7m8-vhhv , EUVD-2026-4259

cvss
6.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 39%
public exploits
0
none known

Summary

phpMyFAQ is an open source FAQ web application. Versions 4.0.16 and below allow an authenticated user without the dlattachment permission to download FAQ attachments due to a incomprehensive permissions check. The presence of a right key is improperly validated as proof of authorization in attachment.php. Additionally, the group and user permission logic contains a flawed conditional expression that may allow unauthorized access. This issue has been fixed in version

Patch / fix

  • packagist phpmyfaq/phpmyfaq 4.0.17
  • packagist thorsten/phpmyfaq 4.0.17
  • phpmyfaq phpmyfaq 4.0.17

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
partial
Assessed
9 mo ago

Exploit prediction

0.46% chance of exploitation in the next 30 days, higher than 39% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-7p9h-m7m8-vhhv referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
GitHub 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Affected packages

ecosystem package affected fixed in
packagist phpmyfaq/phpmyfaq
<4.0.17
4.0.17
packagist thorsten/phpmyfaq
<4.0.17
4.0.17

Affected products

  • thorsten phpMyFAQ

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.