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TI-2026-29091 Aliases CVE-2026-40314

NamelessMC: Reactions on private or blocking profile posts can be read and modified without proper authorization

Priority HIGH 70CWE-862Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Security bypass
Confidentiality · integrity · availability
Low · Low · None
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-862.

Summary

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. `modules/Core/queries/reactions.php` allows unauthenticated GET requests for reaction details. This means that unauthenticated visitors can read reaction participants and timestamps for private profile posts and uthenticated low-privileged users can add reactions to private or blocking profile posts. Version 2.2.5 fixes the issue.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00272 19th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
NamelessMCNameless= 2.2.4—No fix listedCNA
  • Nameless VendorNamelessMC Affected = 2.2.4 Fixed in — No fix listed CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:namelessmc:nameless:*:*:*:*:*:*:*:*——NamelessMC
  • cpe:2.3:a:namelessmc:nameless:*:*:*:*:*:*:*:* Versions — — ·NamelessMC

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-40314

References

Other 1

  • TI-2025-16092 Account Takeover in NamelessMC CVSS 4.0CRITICAL 9.0
  • TI-2025-33960 NamelessMC allows Stored Cross-Site Scripting (XSS) in dashboard text editor CVSS 3.1CRITICAL 9.1
  • TI-2025-23467 NamelessMC Vulnerable to SQL Injections in /user/messaging and /panel/users/reports Pages CVSS 4.0HIGH 8.6
  • TI-2025-21195 NamelessMC Has Lack of Length Validation for s Parameter in GET Requests CVSS 3.1HIGH 7.5
  • TI-2022-02614 Session Fixation in namelessmc/nameless CVSS 3.1HIGH 8.2
  • TI-2025-16090 Cross-site Scripting in NamelessMC CVSS 4.0MEDIUM 6.3
See all 19 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences