CVE-2026-35443— NamelessMC: Forum reactions bypass the "view own topics only" restriction
Possible ATT&CK Techniques 1AI
T1528 · Steal Application Access TokenAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| NamelessMC | Nameless | = 2.2.4 | affected |
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I. Basic Information for CVE-2026-35443
Vulnerability Information
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Vulnerability Title
NamelessMC: Forum reactions bypass the "view own topics only" restriction
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
NamelessMC 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
NamelessMC是NamelessMC团队的一款免费、易于使用且功能强大的网站软件。适用于您的 Minecraft 服务器，其中包含大量功能。 NamelessMC 2.2.4版本存在安全漏洞，该漏洞源于未重新强制topic-level view_other_topics授权，可能导致在论坛中读取和修改其他用户主题的反应。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| NamelessMC | Nameless | = 2.2.4 | - |
II. Public POCs for CVE-2026-35443
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
No public POC found.
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Vendor Advisories for CVE-2026-35443 (1)
Same Patch Batch · NamelessMC · 2026-06-02 · 7 CVEs total
| CVE-2026-34460 | 5.4 MEDIUM | NamelessMC: OAuth callback `state` is not validated, allowing login CSRF / session swappin |
| CVE-2026-32250 | 4.3 MEDIUM | NamelessMC has Reflected Cross-Site Scripting (XSS) in id parameter of /index.php?route=/q |
| CVE-2026-33398 | Authenticated users can read hidden forum posts through `/forum/get_quotes` | |
| CVE-2026-35447 | NamelessMC: Private or blocking profile pages can be bypassed with direct POST requests, a | |
| CVE-2026-40314 | NamelessMC: Reactions on private or blocking profile posts can be read and modified withou | |
| CVE-2026-40571 | NamelessMC: Reactions on private or blocking profile posts can be modified without proper |
IV. Related Vulnerabilities
Same product: Nameless
- CVE-2026-40571
NamelessMC: Reactions on private or blocking profile posts c - CVE-2026-35447
NamelessMC: Private or blocking profile pages can be bypasse - CVE-2026-40314
NamelessMC: Reactions on private or blocking profile posts c - CVE-2026-34460
NamelessMC: OAuth callback `state` is not validated, allowin - CVE-2026-33398
Authenticated users can read hidden forum posts through `/fo
Same vendor: NamelessMC
- CVE-2026-40571
NamelessMC: Reactions on private or blocking profile posts c - CVE-2026-35447
NamelessMC: Private or blocking profile pages can be bypasse - CVE-2026-40314
NamelessMC: Reactions on private or blocking profile posts c - CVE-2026-34460
NamelessMC: OAuth callback `state` is not validated, allowin - CVE-2026-33398
Authenticated users can read hidden forum posts through `/fo
Same weakness: CWE-862
- CVE-2026-17153
AI Agent by SiteGround <= 1.2.7 - Missing Authorization to A - CVE-2026-76398
Improper Access Control during Experiment History Deletion t - CVE-2026-76394
Missing Authorization in Container and Connection Management - CVE-2026-76368
Missing Authorization through Playbooks in Splunk SOAR - CVE-2026-76360
Information Disclosure through Missing Authorization in the
V. Comments for CVE-2026-35443
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