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.
References (3)
Core 3
Core References
Release Notes x_refsource_misc
https://github.com/NamelessMC/Nameless/releases/tag/v2.2.0
Exploit, Vendor Advisory x_refsource_confirm
https://github.com/NamelessMC/Nameless/security/advisories/GHSA-2prx-rgr7-hq5f
Scores
CVSS v3
7.1
EPSS
0.0039
EPSS Percentile
60.4%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-400
Status
published
Products (1)
namelessmc/nameless
< 2.2.0
Published
Apr 18, 2025
Tracked Since
Feb 18, 2026