CVE-2026-65573 ThemeREX CVE debrief

Who should care

Users of Abelle theme version 1.22 or earlier, security teams, and operators should be aware of this vulnerability and take necessary actions to mitigate it. They should review official advisories, verify affected scope, and apply vendor patches or updates. Vulnerability management and security teams should prioritize this vulnerability due to its critical severity and potential impact on affected systems. Additionally, platform operators and administrators should verify the affected scope and review official advisories for mitigation guidance.

Technical summary

CVE-2026-65573 is a critical vulnerability in Abelle theme version 1.22 or earlier, allowing unauthenticated PHP object injection. The vulnerability has a CVSS score of 9.8 and is considered critical. It affects users of Abelle theme version 1.22 or earlier, who should apply vendor patches or updates and monitor for suspicious activity. The vulnerability allows attackers to inject malicious PHP objects, potentially leading to arbitrary code execution.

Defensive priority

Critical vulnerability in Abelle theme version 1.22 or earlier, allowing unauthenticated PHP object injection, with a CVSS score of 9.8.

Recommended defensive actions

• Inventory and verify Abelle theme versions
• Apply vendor patches or updates
• Monitor for suspicious activity
• Consider compensating controls
• Review official advisories for mitigation guidance

Evidence notes

Evidence from Patchstack and NVD indicates a critical vulnerability in Abelle theme version 1.22 or earlier, allowing unauthenticated PHP object injection. The vulnerability has a CVSS score of 9.8 and is considered critical. Defenders should verify the affected scope, review official advisories, and monitor for suspicious activity.

Official resources