Vulnerability in NamelessMC (CVE-2026-33398)
Summary
Vulnerability in NamelessMC (CVE-2026-33398). Risk of unauthorized operations or information disclosure. Exploitable via post.
Original description
The description as published by the source.
NamelessMC is website software for Minecraft servers. In version 2.2.4, modules/Forum/pages/forum/get_quotes.php only checks whether the caller is logged in, then reads a post by attacker-controlled post ID and returns its content. The backend helper in modules/Forum/classes/Forum.php does not enforce forum or topic ACLs. In contrast, the normal topic page in modules/Forum/pages/forum/view_topic.php enforces forum visibility and view_other_topics. Any low-privileged authenticated user can enumerate post IDs and read content from hidden, private, or staff-only forums. Version 2.2.5 fixes the issue.
Source: NIST National Vulnerability Database NVD GitHub Advisory
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as CVE-2026-33398 has been found in NamelessMC.
Attackers can target a specific entry point like post over the network to misuse the product.
Risk of unauthorized operations or information disclosure.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "NamelessMC CVE-2026-33398" on the vendor's site.
CVE-2026-33398 (NamelessMC) — CWE-285
Attack surface: post / view_other_topics
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
A vulnerability (CWE-285) exists in NamelessMC. Attackers reach the vulnerable code path via post.
Check the vendor advisory for the affected versions of NamelessMC. Attack surface: post / view_other_topics.
Severity: ?. Risk of unauthorized operations or information disclosure.
Update to the patched release per vendor advisory.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run grep -r 'NamelessMC' . against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
-
1Identify exposure identify
grep -r 'NamelessMC' . | grep -v node_modulesリポジトリと本番環境の依存ファイル (package-lock.json / requirements.txt / go.sum / Gemfile.lock 等) で
NamelessMCを grep し、稼働しているサービス・バージョンを把握する。 -
2Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
References
- advisory github.com
- advisory github.com
- advisory nvd.nist.gov