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ByteCoreStack – MCP Connector for AI Tools <= 1.2.2 — Authenticated (Subscriber+) Privilege Escalation

CVE-2026-103068Published · Updated

Action summary

Affected: ≤1.2.2Update to 1.2.4 or newer

All remediation steps
Watch plugin
Severity
Medium6.3
CVSS
6.3
CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
What does this vector mean?
AV:N Attack vector
Network
AC:L Attack complexity
Low
PR:L Privileges required
Low
UI:N User interaction
None
S:U Scope
Unchanged
C:L Confidentiality
Low
I:L Integrity
Low
A:L Availability
Low
Weakness
CWE-269 Privilege Escalation
Required access
Unknown
Exploit prediction (EPSS)
No score
CISA KEV
Not listed
On this page8

Am I affected?

ByteCoreStack – MCP Connector for AI Tools bcs-mcp-manager

  1. Affected≤ 1.2.2
  2. Patched in1.2.4

Update to 1.2.4 or newer.

You are affected if you run ≤ 1.2.2. Version 1.2.4 and later are not affected by this issue.

  • Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under ByteCoreStack – MCP Connector for AI Tools.
  • No admin access? Run a passive check of your site. It reads public files only.

What to do

  1. Update to version 1.2.4, or a newer patched version
  2. Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
  3. Watch ByteCoreStack – MCP Connector for AI Tools to get an email when the next vulnerability is published.

Advisory

Source description from Wordfence Intelligence, credited to Ananda Dhakal.

The ByteCoreStack – MCP Connector for AI Tools plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 1.2.2. This is due to insufficient restriction on the capabilities a user may grant themselves. This makes it possible for authenticated attackers, with subscriber-level access and above, to elevate their privileges beyond those intended for their role.

Exploits & references

Proof-of-concept & detection

No public proof-of-concept or detection template is known for this vulnerability.

Advisories & patches

More in ByteCoreStack – MCP Connector for AI Tools

All 2
More vulnerabilities in ByteCoreStack – MCP Connector for AI Tools
SeverityVulnerabilityCVEPublished
High8.8Authenticated (Subscriber+) Privilege Escalation via wp_update_user_meta MCP Tool
≤1.2.3Update to 1.2.4
CVE-2026-19807

Same weakness (Privilege Escalation)

All Privilege Escalation
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CVE-2026-120688
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Critical9.8Unauthenticated PHP Object Injection to Remote Code Execution via 'form' Parameter
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CVE-2026-119077
Medium5.3Unauthenticated Sensitive Information Exposure in 'search' Parameter
Customer Reviews for WooCommerce≤5.127.0Update to 5.128.0
CVE-2026-121518

Timeline

  1. CVE published

    Severity medium, CVSS 6.3

  2. Record last updated

Sources & licenses

Wordfence record
Vulnerability data
Wordfence Intelligence. [object Object] Licensed under the CC BY-SA 4.0.
CVE® identifiers
[object Object]. Used under the CVE Program. CVE® is a registered trademark of The MITRE Corporation.
CVSS / CWE
National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.
VulnCrest content
Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.

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