CVE-2026-15097 themifyme CVE debrief

Who should care

Users of the Themify Builder plugin for WordPress, particularly those with contributor-level access and above, should be aware of this vulnerability and take steps to mitigate it. This includes updating the plugin to a version that fixes the vulnerability, restricting access to the plugin's settings and functionality to trusted users only, and monitoring for suspicious activity and implementing additional security measures as needed.

Technical summary

The Themify Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'height_slider' Slider Module Field in all versions up to, and including, 7.7.6. This is due to insufficient input sanitization and output escaping, allowing authenticated attackers with contributor-level access and above to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The vulnerability has a CVSS score of 6.4 and a severity of MEDIUM.

Defensive priority

Medium priority, as the vulnerability requires contributor-level access and above, but can lead to significant impact if exploited.

Recommended defensive actions

• Update the Themify Builder plugin to a version that fixes the vulnerability
• Restrict access to the plugin's settings and functionality to trusted users only
• Monitor for suspicious activity and implement additional security measures as needed
• 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

The vulnerability was reported by [email protected] and is documented in various source references. The Themify Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'height_slider' Slider Module Field in all versions up to, and including, 7.7.6 due to insufficient input sanitization and output escaping. This vulnerability requires contributor-level access and above to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Defenders should verify affected product deployments, review official advisories, and plan vendor-supported updates or mitigations.

Official resources