CVE-2026-2020: CWE-502 Deserialization of Untrusted Data in skatox JS Archive List
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.
AI Analysis
Technical Summary
CVE-2026-2020 is a PHP Object Injection vulnerability in the skatox JS Archive List WordPress plugin affecting all versions up to 6.1.7. The issue stems from unsafe deserialization of the 'included' shortcode attribute, which accepts untrusted input. Authenticated attackers with Contributor or higher privileges can exploit this to inject PHP objects. The vulnerability alone does not include a POP chain, but if a suitable POP chain is available via other installed plugins or themes, it could enable severe impacts such as arbitrary file deletion, data leakage, or remote code execution. The CVSS v3.1 base score is 7.5, indicating high severity, with network attack vector, high impact on confidentiality, integrity, and availability, and requiring low privileges and high attack complexity.
Potential Impact
The vulnerability allows authenticated users with Contributor-level access or above to inject PHP objects via deserialization, which can lead to significant impacts if a POP chain is present. Potential impacts include deletion of arbitrary files, retrieval of sensitive information, and remote code execution. The severity is high (CVSS 7.5) due to the combination of network attack vector, low privilege requirement, and high impact on confidentiality, integrity, and availability.
Mitigation Recommendations
No official patch or fix is currently available for this vulnerability. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is released, restrict Contributor-level access to trusted users only and consider disabling or removing the JS Archive List plugin if possible. Monitor for updates from the vendor or WordPress plugin repository for a security update addressing this issue.
CVE-2026-2020: CWE-502 Deserialization of Untrusted Data in skatox JS Archive List
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.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-2020 is a PHP Object Injection vulnerability in the skatox JS Archive List WordPress plugin affecting all versions up to 6.1.7. The issue stems from unsafe deserialization of the 'included' shortcode attribute, which accepts untrusted input. Authenticated attackers with Contributor or higher privileges can exploit this to inject PHP objects. The vulnerability alone does not include a POP chain, but if a suitable POP chain is available via other installed plugins or themes, it could enable severe impacts such as arbitrary file deletion, data leakage, or remote code execution. The CVSS v3.1 base score is 7.5, indicating high severity, with network attack vector, high impact on confidentiality, integrity, and availability, and requiring low privileges and high attack complexity.
Potential Impact
The vulnerability allows authenticated users with Contributor-level access or above to inject PHP objects via deserialization, which can lead to significant impacts if a POP chain is present. Potential impacts include deletion of arbitrary files, retrieval of sensitive information, and remote code execution. The severity is high (CVSS 7.5) due to the combination of network attack vector, low privilege requirement, and high impact on confidentiality, integrity, and availability.
Mitigation Recommendations
No official patch or fix is currently available for this vulnerability. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is released, restrict Contributor-level access to trusted users only and consider disabling or removing the JS Archive List plugin if possible. Monitor for updates from the vendor or WordPress plugin repository for a security update addressing this issue.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Wordfence
- Date Reserved
- 2026-02-05T20:04:06.842Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 69ac8b60c48b3f10ffc6f673
Added to database: 3/7/2026, 8:32:32 PM
Last enriched: 4/9/2026, 6:38:09 PM
Last updated: 4/22/2026, 1:58:28 AM
Views: 71
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