3.5

CVE-2026-45126

MyBB: ACP Questions state CSRF

MyBB is free and open source forum software. Prior to 1.8.40, the Admin CP Security Questions module does not validate the anti-CSRF token correctly, allowing same-site attackers to enable or disable registration challenge questions with a specially crafted URL. The controller processes GET requests for the disable and enable actions to modify mybb_questions.active without verifying the my_post_key token attached by the user interface. The uniquely identifying implementation details include admin/modules/config/questions.php. This issue is fixed in version 1.8.40.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
Herstellermybb
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Produkt mybb
Version < 1.8.40
Status affected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.13% 0.032
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
security-advisories@github.com 3.5 2.1 1.4
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
CWE-352 Cross-Site Request Forgery (CSRF)

The web application does not, or cannot, sufficiently verify whether a request was intentionally provided by the user who sent the request, which could have originated from an unauthorized actor.

https://github.com/mybb/mybb/releases/tag/mybb_1840
https://mybb.com/versions/1.8.40
https://github.com/mybb/mybb/security/advisories/GHSA-m42q-vgx3-fqcc
https://github.com/mybb/mybb/commit/6893b395c7fa3b9e4de6235caea0ce198c376c4f