Vulnerability Report

CVE-2026-2020

RCE

Title: PHP Object Injection

RCE

Proof Of Concept

PoC Available for CVE-2026-2020

CWE Category CWE-502
Published Date Mar 07, 2026
Modified Date Apr 22, 2026
Exploit Status Available
Score 7.5 CVSS v3.1
Exploit Probability (EPSS)
0.42%

Vulnerability Summary

CVE-2026-2020: 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.

Impacted Vendors

Analysis in Progress...

Reference Links

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
CVSS v3.1
Source Entity [email protected]
Severity HIGH
7.5
Attack Vector
NETWORK
Complexity
HIGH
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2026-2020 Exploits & PoCs (Proof Of Concept)

GitHub https://github.com/George0Papasotiriou/CVE-2026-2020-SSRF-via-URL-Parser-Differential
View Code
MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

Attack Vector Matrix

Access Vector NETWORK
Complexity HIGH
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Stack

No specific products linked.