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Broken access control in WSP MCP plugin exposes unpublished posts

Priority LOW 29CWE-863Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-863.

Summary

The bilalnaseer WSP MCP plugin for WordPress is affected in versions from 0 through 2.9.5. The wsp_get_posts MCP tool is registered without a capability requirement, so the endpoint accepts any logged-in user, which is an instance of CWE-863 Incorrect Authorization. An authenticated attacker with Subscriber-level access or higher can read titles, URLs, authors, categories, tags and excerpts of draft, pending and scheduled posts on the site.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

The WSP MCP AI Agents Connector plugin for WordPress is vulnerable to Sensitive Information Disclosure in versions up to, and including, 2.9.5. This is due to the wsp_get_posts MCP tool being registered with an empty capability requirement while the MCP endpoint's authenticate() method accepts any logged-in user, and the wsp_execute_get_posts() callback honouring a caller-supplied status=all argument that expands into a WP_Query over 'publish', 'draft', 'pending' and 'future' posts with no author or ownership filter. This makes it possible for authenticated attackers, with Subscriber-level access and above, to read the titles, URLs, authors, categories, tags and 40-word excerpts of every unpublished (draft/pending/scheduled) post on the site.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00336 27th 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
None
Automatable
No
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
Bilal NaseerWSP MCP – Free MCP Plugin for WordPress: Connect Claude, ChatGPT & AI Agentsup to 2.9.5—No fix listedCNA
  • WSP MCP – Free MCP Plugin for WordPress: Connect Claude, ChatGPT & AI Agents VendorBilal Naseer Affected up to 2.9.5 Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for WSP MCP (Free MCP Plugin for WordPress: Connect Claude, ChatGPT & AI Agents).

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Timeline

  1. 2026-10-16 Threatist record created from CVE-2026-109382
  2. 2026-10-16 Alias added: GHSA-829v-95xx-xwjh

References

  • TI-2026-63012 WordPress WSP MCP - AI Agents Connector plugin <= 2.7.0 - Broken Access Control vulnerability CVSS 3.1MEDIUM 6.5

Sources