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

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Summary

CVECVE-2026-2020
StatePUBLISHED
AssignerWordfence
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-03-07 02:16:12 UTC
Updated2026-04-22 21:27:27 UTC
DescriptionThe 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.

Risk And Classification

Primary CVSS: v3.1 7.5 HIGH from [email protected]

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

EPSS: 0.000840000 probability, percentile 0.244030000 (date 2026-04-22)

Problem Types: CWE-502 | CWE-502 CWE-502 Deserialization of Untrusted Data

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary7.5HIGHCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
3.1CNADECLARED7.5HIGHCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Skatox JS Archive List affected 6.1.7 semver Not specified

References

ReferenceSourceLinkTags
plugins.trac.wordpress.org/browser/jquery-archive-list-widget/trunk/classes/class-js-arc... [email protected] plugins.trac.wordpress.org
www.wordfence.com/threat-intel/vulnerabilities/id/9b0f6653-471b-4cee-9c92-f24db... [email protected] www.wordfence.com
plugins.trac.wordpress.org/browser/jquery-archive-list-widget/tags/6.1.7/classes/class-j... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/jquery-archive-list-widget/trunk/classes/class-jq-arc... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/jquery-archive-list-widget/tags/6.1.7/classes/class-j... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/changeset [email protected] plugins.trac.wordpress.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Athiwat Tiprasaharn (en)

CNA: Itthidej Aramsri (en)

CNA: Waris Damkham (en)

Additional Advisory Data

SourceTimeEvent
CNA2026-02-05T20:19:15.000ZVendor Notified
CNA2026-03-06T11:46:38.000ZDisclosed
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