CVE-2025-30158

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 v3.1

7.1 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H

CVSS v3.1

7.1 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H

EPSS

0.53% chance of exploitation in the next 30 days, 42th percentile

Published

2025-04-18

Proof-of-concept exploits (1)

• NamelessMC/Nameless/security/advisories/GHSA-2prx-rgr7-hq5f

References

• CVE Record
• NVD entry

Related

• CVE-2025-22142
• CVE-2025-22144
• CVE-2025-29784
• CVE-2025-31118
• CVE-2025-31120
• CVE-2025-54117