Vulnerability Description
The JS Archive List plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 6.1.7 via the 'included' shortcode attribute. This is due to the deserialization of untrusted input supplied via the 'included' parameter of the plugin's shortcode. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject a PHP Object. No known POP chain is present in the vulnerable software. If a POP chain is present via an additional plugin or theme installed on the target system, it could allow the attacker to delete arbitrary files, retrieve sensitive data, or execute code.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://plugins.trac.wordpress.org/browser/jquery-archive-list-widget/tags/6.1.7
- https://plugins.trac.wordpress.org/browser/jquery-archive-list-widget/tags/6.1.7
- https://plugins.trac.wordpress.org/browser/jquery-archive-list-widget/trunk/clas
- https://plugins.trac.wordpress.org/browser/jquery-archive-list-widget/trunk/clas
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old
- https://www.wordfence.com/threat-intel/vulnerabilities/id/9b0f6653-471b-4cee-9c9
FAQ
What is CVE-2026-2020?
CVE-2026-2020 is a vulnerability with a CVSS score of 7.5 (HIGH). The JS Archive List plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 6.1.7 via the 'included' shortcode attribute. This is due to the deserialization of...
How severe is CVE-2026-2020?
CVE-2026-2020 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-2020?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.