What’s Vulnerable › Vulnerabilities

CVE-2026-2020: JS Archive List <= 6.1.7 - Authenticated (Contributor+) PHP Object Injection via 'included' Shortcode Attribute

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-03-07 · updated 2026-06-17
• Weakness: CWE-502

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.

Affected products

• skatox JS Archive List: through 6.1.7

References

• https://plugins.trac.wordpress.org/browser/jquery-archive-list-widget/tags/6.1.7/classes/class-jq-archive-list-widget.php#L674
• https://plugins.trac.wordpress.org/browser/jquery-archive-list-widget/tags/6.1.7/classes/class-js-archive-list-settings.php#L10
• https://plugins.trac.wordpress.org/browser/jquery-archive-list-widget/trunk/classes/class-jq-archive-list-widget.php#L674
• https://plugins.trac.wordpress.org/browser/jquery-archive-list-widget/trunk/classes/class-js-archive-list-settings.php#L10
• https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3466978%40jquery-archive-list-widget&new=3466978%40jquery-archive-list-widget&sfp_email=&sfph_mail=
• https://www.wordfence.com/threat-intel/vulnerabilities/id/9b0f6653-471b-4cee-9c92-f24dbe2c2dbd?source=cve

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