CVE-2025-30158: high-severity vulnerability in NamelessMC Nameless
NamelessMC Forum iframe width/height abuse causing UI-based Denial of Service
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.1epss 0.6%
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.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
Affected products
NamelessMC · NamelessRelated CVEs — NamelessMC Nameless
In the same product, most dangerous first.
CVE-2025-22144CRITICALAccount Takeover in NamelessMCEPSS 0.8%CVE-2025-29784HIGHNamelessMC Has Lack of Length Validation for s Parameter in GET RequestsEPSS 0.7%CVE-2025-31118HIGHNamelessMC Has Forum Reply Submission Time Limit BypassEPSS 0.6%CVE-2025-32389HIGHNamelessMC Vulnerable to SQL Injections in /user/messaging and /panel/users/reports PagesEPSS 0.5%CVE-2025-31120MEDIUMNamelessMC Vulnerable to Cookie-Based View Count ManipulationEPSS 0.5%CVE-2025-30357HIGHNamelessMC Forum Topic Deletion Triggered by Unrelated User DeletionEPSS 0.5%