Is CVE-2026-5144 actively exploited?

A proof-of-concept exploit is publicly available for CVE-2026-5144, but active exploitation has not been confirmed.

Can CVE-2026-5144 be exploited remotely?

Yes. CVE-2026-5144 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-5144?

CVE-2026-5144 has a CVSS score of 8.8 (HIGH).

HOME VULNERABILITIESCVE-2026-5144

HIGHPOC

CVE-2026-5144

CWE-269Published: April 11, 2026· Updated: Apr 13, 2026

8.8

CVSS v3.1

Official Description

The BuddyPress Groupblog plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 1.9.3. This is due to the group blog settings handler accepting the `groupblog-blogid`, `default-member`, and `groupblog-silent-add` parameters from user input without proper authorization checks. The `groupblog-blogid` parameter allows any group admin (including Subscribers who create their own group) to associate their group with any blog on the Multisite network, including the main site (blog ID 1). The `default-member` parameter accepts any WordPress role, including `administrator`, without validation against a whitelist. When combined with `groupblog-silent-add`, any user who joins the attacker's group is automatically added to the targeted blog with the injected role. This makes it possible for authenticated attackers, with Subscriber-level access and above, to escalate any user (including themselves via a second account) to Administrator on the main site of the Multisite network.

NVD Source

Technical Analysis

CVE-2026-5144 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.8.

A proof-of-concept (PoC) exploit exists for CVE-2026-5144. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.