CVE-2026-12906 RTMKit CVE debrief

Who should care

Users of RTMKit WordPress plugin, especially those with multi-author blogs or sites with contributor roles, should be aware of this vulnerability. They should review their plugin versions and update to 2.0.9 or later to mitigate the vulnerability. Additionally, they should restrict access to sensitive post information for users with Contributor role and monitor for suspicious AJAX requests to the affected plugin.

Technical summary

The RTMKit WordPress plugin before 2.0.9 is vulnerable to a capability check bypass. An AJAX action in the plugin does not properly verify the user's capabilities before allowing access to post information. Specifically, the plugin resolves a post identifier supplied in the request without adequate checks, enabling users with at least the Contributor role to read the titles of private, draft, pending, scheduled, and trashed posts belonging to other users. This vulnerability can be mitigated by updating the plugin to version 2.0.9 or later.

Defensive priority

Medium

Recommended defensive actions

• Update RTMKit WordPress plugin to version 2.0.9 or later
• Restrict access to sensitive post information for users with Contributor role
• Monitor for suspicious AJAX requests to the affected plugin
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

Evidence is limited. The CVE record was published on 2026-07-16T07:16:47.400Z and has not been modified since then. The NVD entry is currently Received. Defenders should verify the affected scope and severity based on the official CVE record and NVD entry.

Official resources