Vulnerability Description
The Nexter Extension – Site Enhancements Toolkit plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 4.4.6 via deserialization of untrusted input in the 'nxt_unserialize_replace' function. This makes it possible for unauthenticated attackers to inject a PHP Object. No known POP chain is present in the vulnerable software, which means this vulnerability has no impact unless another plugin or theme containing a POP chain is installed on the site. If a POP chain is present via an additional plugin or theme installed on the target system, it may allow the attacker to perform actions like delete arbitrary files, retrieve sensitive data, or execute code depending on the POP chain present.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://plugins.trac.wordpress.org/changeset?old_path=/nexter-extension/tags/4.4
- https://www.wordfence.com/threat-intel/vulnerabilities/id/02de9287-68e4-46ce-a49
FAQ
What is CVE-2026-0726?
CVE-2026-0726 is a vulnerability with a CVSS score of 8.1 (HIGH). The Nexter Extension – Site Enhancements Toolkit plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 4.4.6 via deserialization of untrusted input in the 'n...
How severe is CVE-2026-0726?
CVE-2026-0726 has been rated HIGH with a CVSS base score of 8.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-0726?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.