CVE-2026-40571— NamelessMC: Reactions on private or blocking profile posts can be modified without proper authorization
Possible ATT&CK Techniques 1AI
T1078 · Valid AccountsAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| NamelessMC | Nameless | = 2.2.4 | affected |
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I. Basic Information for CVE-2026-40571
Vulnerability Information
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Vulnerability Title
NamelessMC: Reactions on private or blocking profile posts can be modified without proper authorization
Source: NVD (National Vulnerability Database)
Vulnerability Description
NamelessMC is website software for Minecraft servers. In version 2.2.4, `core/classes/Misc/ProfilePostReactionContext.php` only verifies that the wall post exists and does not enforce blocked/private-profile visibility. This means that authenticated low-privileged users can add reactions to private or blocking profile posts. Version 2.2.5 contains a patch.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
授权机制缺失
Source: NVD (National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| NamelessMC | Nameless | = 2.2.4 | - |
II. Public POCs for CVE-2026-40571
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
No public POC found.
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Vendor Advisories for CVE-2026-40571 (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-2026-35443 | NamelessMC: Forum reactions bypass the "view own topics only" restriction | |
| 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 |
IV. Related Vulnerabilities
Same product: Nameless
- 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-2026-35443
NamelessMC: Forum reactions bypass the "view own topics only - 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-2026-35447
NamelessMC: Private or blocking profile pages can be bypasse - CVE-2026-40314
NamelessMC: Reactions on private or blocking profile posts c - CVE-2026-35443
NamelessMC: Forum reactions bypass the "view own topics only - 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-2026-10616
nextlevelbuilder GoClaw Team Task Completion team_tasks_life - CVE-2026-40314
NamelessMC: Reactions on private or blocking profile posts c - CVE-2026-35443
NamelessMC: Forum reactions bypass the "view own topics only - CVE-2026-49782
WordPress Elementor Website Builder plugin <= 4.1.0 - Broken - CVE-2026-27351
WordPress Crew HRM plugin <= 1.2.2 - Broken Access Control v
V. Comments for CVE-2026-40571
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