CVE-2026-35443: CWE-862: Missing Authorization in NamelessMC Nameless
NamelessMC is website software for Minecraft servers. In version 2.2.4, `modules/Forum/classes/ForumPostReactionContext.php` only verifies that the caller can view the forum, but it does not re-enforce topic-level `view_other_topics` authorization. As a result, in forums where users may enter the forum but may only view their own topics, reactions can still be read and modified on other users' topics. Version 2.2.5 fixes the issue.
AI Analysis
Technical Summary
CVE-2026-35443 is a missing authorization vulnerability (CWE-862) in NamelessMC version 2.2.4, specifically in the file modules/Forum/classes/ForumPostReactionContext.php. The code checks if a user can view the forum but fails to enforce the 'view_other_topics' permission at the topic level. Consequently, users who should only see their own topics can access and modify reactions on topics created by others. This authorization bypass is resolved in version 2.2.5.
Potential Impact
Users with limited forum viewing permissions can read and modify reactions on topics they are not authorized to access. This could lead to unauthorized data exposure and modification within the forum module of NamelessMC 2.2.4. There are no known exploits in the wild at this time.
Mitigation Recommendations
Upgrade NamelessMC to version 2.2.5 or later, where this authorization issue has been fixed. Since no official patch link or advisory is provided, verify the update from the vendor's official source before applying. Patch status is not explicitly confirmed beyond the version fix note; check the vendor advisory for current remediation guidance.
CVE-2026-35443: CWE-862: Missing Authorization in NamelessMC Nameless
Description
NamelessMC is website software for Minecraft servers. In version 2.2.4, `modules/Forum/classes/ForumPostReactionContext.php` only verifies that the caller can view the forum, but it does not re-enforce topic-level `view_other_topics` authorization. As a result, in forums where users may enter the forum but may only view their own topics, reactions can still be read and modified on other users' topics. Version 2.2.5 fixes the issue.
CVSS v4.0
Score 5.3medium
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-35443 is a missing authorization vulnerability (CWE-862) in NamelessMC version 2.2.4, specifically in the file modules/Forum/classes/ForumPostReactionContext.php. The code checks if a user can view the forum but fails to enforce the 'view_other_topics' permission at the topic level. Consequently, users who should only see their own topics can access and modify reactions on topics created by others. This authorization bypass is resolved in version 2.2.5.
Potential Impact
Users with limited forum viewing permissions can read and modify reactions on topics they are not authorized to access. This could lead to unauthorized data exposure and modification within the forum module of NamelessMC 2.2.4. There are no known exploits in the wild at this time.
Mitigation Recommendations
Upgrade NamelessMC to version 2.2.5 or later, where this authorization issue has been fixed. Since no official patch link or advisory is provided, verify the update from the vendor's official source before applying. Patch status is not explicitly confirmed beyond the version fix note; check the vendor advisory for current remediation guidance.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-04-02T19:25:52.192Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a1f1074e29bf47b50e96295
Added to database: 6/2/2026, 5:18:44 PM
Last enriched: 6/2/2026, 5:35:10 PM
Last updated: 6/3/2026, 4:32:20 AM
Views: 3
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