CVE-2026-2020 json
JS Archive List <= 6.1.7 - Authenticated (Contributor+) PHP Object Injection via 'included' Shortcode Attribute
published 8mo ago modified 4mo ago also EUVD-2026-10098
- cvss
- 7.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 42%
- public exploits
- 0
- none known
Summary
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.
Is CVE-2026-2020 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 8mo ago
Exploit prediction
0.49% chance of exploitation in the next 30 days, higher than 42% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
Affected products
- skatox JS Archive List
Classification
- Weakness
-
- CWE-502 Deserialization of Untrusted Data
- Technology feeds
References
- wordfence.com /threat-intel/vulnerabilities/id/9b0f6653-471b-4cee-9c92-f24dbe2c2dbd?source=cve
- plugins.trac.wordpress.org /browser/jquery-archive-list-widget/trunk/classes/class-js-archive-list-settings.php#L10
- plugins.trac.wordpress.org /browser/jquery-archive-list-widget/tags/6.1.7/classes/class-js-archive-list-settings.php#L10
- plugins.trac.wordpress.org /browser/jquery-archive-list-widget/trunk/classes/class-jq-archive-list-widget.php#L674
- plugins.trac.wordpress.org /browser/jquery-archive-list-widget/tags/6.1.7/classes/class-jq-archive-list-widget.php#L674
- plugins.trac.wordpress.org /changeset?sfp_email=&sfph_mail=&reponame=&old=3466978%40jquery-archive-list-widget&new=3466978%40jquery-archi
Sources
- CVE List CVE-2026-2020
- NVD CVE-2026-2020
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.