CVE-2026-15015Disclosure

LOWCVSS 9.8 · CRITICAL

Exploit discussion active in current signal (2 latest mentions)

Immediate actions

  • Hunt for exploitation attempts and persistence artifacts
  • Increase monitoring for publicly documented tradecraft
  • Track advisory updates for patch or workaround availability

Recommended action window: High priority (within 72h)

NVD description

The MountDev AI MCP Connector for WordPress plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 1.6.1. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for unauthenticated attackers to obtain an administrator-bound OAuth Bearer token via a self-registered client, granting full administrator-equivalent access to the plugin's MCP tool surface and all exposed WordPress content, users, and options. This is exploitable by combining the publicly accessible Dynamic Client Registration endpoint, which allows unauthenticated callers to register arbitrary OAuth clients with an attacker-controlled redirect_uri, with the unprotected authorization endpoint to complete the full OAuth flow without any administrator interaction.

1.5/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-862

Priority

LOW

Exploitation

NONE

PoC

YES

Patch

NONE

Momentum

STABLE

Threat summary

  • Public PoC is present in monitored signal
  • 3 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • PoC mentioned or linked in 1 signal
  • Technical details provided in 1 signal
  • Disclosure: 1 classified signal
  • Exploit: 1 classified signal
  • Peaked at 2 mentions on most recent observed day (2026-09-26)
  • 3 total mentions across 2 days

Deep dive

Activity timeline3 mentions / 2d
01122Mentions · 2026-07-23: 1Mentions · 2026-09-26: 2PoC Mentioned / Linked · 2026-09-26: 1Technical Details · 2026-07-23: 107-2309-26
Signal classification3 categories
Disclosure
133.3%
Exploit
133.3%
PoC
133.3%
Referenced assets2 URLs
Classification over time
DateTotalLabels
2026-07-231
Disclosure1
2026-09-262
Exploit1PoC1
Full discourse4 posts
  • pdnuclei-bot@pdnuclei_bot

    🚨 CVE-2026-15015 - critical 🚨 MountDev AI MCP Connector <= 1.6.1 - Unauthenticated Admin OAuth Token Exposure > MountDev AI MCP Connector for WordPress (mountdev-ai-mcp-connector) <= 1.6.1 is vulne... 👾 https://cloud.projectdiscovery.io/library/CVE-2026-15015 @pdnuclei #Nu...

    00011306
    1.4K followersView on X
  • ExploitGrid@exploitgrid
    Exploit

    🛡️ #ExploitGrid Daily #Threat Digest Critical Exploits disclosed today: CVE-2024-47875 CVE-2026-12227 CVE-2026-12227 CVE-2026-15015 CVE-2026-62878 ..🧵👇

    Post summary

    The tweet serves as a threat digest header announcing that critical exploits for multiple CVEs have been disclosed today, implying availability of exploit code, but lacks specific technical details, PoC links, or patch information.

    1000074
    351 followersView on X
  • ExploitGrid@exploitgrid
    PoC

    [EXPLOIT] CVE-2026-15015 [CRITICAL/PoC] wp-secure-mcp 🔗 https://exploitgrid.net/exploits/2483e306-6171-4976-9ea1-eafe8c02aa85

    Post summary

    The post announces that a Proof of Concept exists for CVE‑2026‑15015 affecting wp‑secure‑mcp and provides a link to an exploit listing page.

    1000044
    351 followersView on X
  • Vulmon Vulnerability Feed@VulmonFeeds
    Disclosure

    CVE-2026-15015 Authorization Bypass in MountDev AI MCP Connector for WordPress Up to 1.6.1 https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-15015

    Post summary

    The text announces CVE-2026-15015, identifying an authorization bypass vulnerability in MountDev AI MCP Connector for WordPress versions up to 1.6.1, without providing additional details such as patches, exploits, or PoC.

    00000113
    4.1K followersView on X

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