CVE-2026-2020 HIGH

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

Vendor Skatox
Product JS Archive List
Weakness CWE-502 · Unsafe deserialization
Published March 7, 2026
Last update April 8, 2026

CVSS base score

7.5/10
Attack vector Network
Attack complexity High
Privileges required Low
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

What the vulnerability does

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.

Key dates

Disclosure timeline

March 7, 2026 CVE published
April 8, 2026 Record updated