CVE-2025-4202 Plugins CVE debrief

Who should care

Administrators and security teams running Multicollab Content Team Collaboration and Editorial Workflow on WordPress, especially sites that grant Subscriber-level accounts or broader authenticated access.

Technical summary

NVD describes the issue as an unauthorized modification of data caused by a missing capability check in cf_add_comment, tracked as CWE-862. The supplied CVSS vector (AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N) indicates a network-reachable, low-complexity issue requiring low privileges and affecting integrity rather than confidentiality or availability.

Defensive priority

Medium. The flaw is limited to authenticated users, but it directly affects content integrity and is easy to reach once an account exists. Sites with many lower-privileged users should treat this as a prompt update.

Recommended defensive actions

• Update Multicollab to a vendor-fixed release newer than 5.2 as soon as possible.
• Review any recent collaboration comments or editorial changes for unauthorized additions around the affected plugin version.
• Restrict Subscriber-level and other low-privilege accounts to the minimum access needed until patched.
• Monitor WordPress and plugin audit logs for unexpected comment activity tied to collaboration workflows.

Evidence notes

The CVE description supplied in NVD states that all versions up to and including 5.2 lack a capability check in cf_add_comment, enabling authenticated attackers with Subscriber-level access and above to add comments to arbitrary collaborations. NVD also lists CWE-862 and the CVSS vector AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N. Supporting references include a WordPress Trac source line, a WordPress changeset, and a Wordfence advisory reference.

Official resources