Security Advisory

CVE-2026-43939

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-05-12 13:56:39

Last updated 2026-05-13 14:38:25

Assigner GitHub_M

CVSS score 7.3

State PUBLISHED

Description

YetAnotherForum.NET (YAF.NET) is a C# ASP.NET forum. Prior to 4.0.5 and 3.2.12, the thread posting and reply feature accepts user-supplied content via a a post or reply that is stored server-side and later rendered back into the thread page without adequate HTML sanitization or contextual output encoding. This vulnerability is fixed in 4.0.5 and 3.2.12.

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