CVE-2025-31118: nameless DoS — Exploit & Fix

Description

NamelessMC is a free, easy to use & powerful website software for Minecraft servers. In version 2.1.4 and prior, forum quick reply feature (view_topic.php) does not implement any spam prevention mechanism. This allows authenticated users to continuously post replies without any time restriction, resulting in an uncontrolled surge of posts that can disrupt normal operations. This issue has been patched in version 2.2.0.

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CVSS v3.1 Score

7.1

HIGH

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

Weakness Type (CWE)

CWE-400 Uncontrolled Resource Consumption

Affected Products

Vendor	Product	Versions
namelessmc	nameless	< 2.2.0

References

Advisories & Patches

https://github.com/NamelessMC/Nameless/commit/51e9d93aaa28d40f060b807533d22b768abea207 https://github.com/NamelessMC/Nameless/security/advisories/GHSA-jhvp-mwj4-922m https://github.com/NamelessMC/Nameless/security/advisories/GHSA-jhvp-mwj4-922m

Exploits

https://github.com/NamelessMC/Nameless/security/advisories/GHSA-jhvp-mwj4-922m https://github.com/NamelessMC/Nameless/security/advisories/GHSA-jhvp-mwj4-922m

Other References

https://github.com/NamelessMC/Nameless/releases/tag/v2.2.0

Frequently Asked Questions

What is CVE-2025-31118? +

NamelessMC is a free, easy to use & powerful website software for Minecraft servers. In version 2.1.4 and prior, forum quick reply feature (view_topic.php) does not implement any spam prevention mechanism. This allows authenticated users to continuously post replies without any time restriction, resulting in an uncontrolled surge of posts that can disrupt normal operations. This issue has been patched in version 2.2.0. It has a CVSS v3.1 base score of 7.1 (HIGH).

How severe is CVE-2025-31118? +

CVE-2025-31118 has a CVSS v3.1 score of 7.1 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2025-31118? +

CVE-2025-31118 affects products from namelessmc, specifically: nameless. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-31118? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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