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CVE PROGRAM SOURCE RECORD7.1 High

CVE-2025-30158

NamelessMC Forum iframe width/height abuse causing UI-based Denial of Service

Description

NamelessMC is a free, easy to use & powerful website software for Minecraft servers. In version 2.1.4 and prior, the forum allows users to post iframe elements inside forum topics/comments/feed with no restriction on the iframe's width and height attributes. This allows an authenticated attacker to perform a UI-based denial of service (DoS) by injecting oversized iframes that block the forum UI and disrupt normal user interactions. This issue has been patched in version 2.2.0.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

NamelessMC Nameless

  • < 2.2.0affected

References