UpHeron
All vulnerabilities

Servers and applications

CVE-2025-48941

Unviewable threads title disclosure in search

Severity
Medium 5.3
Published
2 Jun 2025
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
1.8.39
Also known as
GHSA-f847-57xc-ffwr
Sources
NVD, Project advisories (GitHub)

Description

MyBB is free and open source forum software. Prior to version 1.8.39, the search component does not validate permissions correctly, which allows attackers to determine the existence of hidden (draft, unapproved, or soft-deleted) threads containing specified text in the title. The visibility state (`mybb_threads.visible` integer column) of threads is not validated in internal search queries,…

Affected software

SoftwareAffected versions
MyBBServers and applications · cpe:a:mybb:mybb
  • Every version before 1.8.39
MyBBServers and applications · github:mybb/mybb
  • Every version before 1.8.39

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2025-48941
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2025-48941
  • GitHub Advisory Database https://github.com/advisories/GHSA-f847-57xc-ffwr
  • github.com https://github.com/mybb/mybb/security/advisories/GHSA-f847-57xc-ffwr