CVE-2026-9199
Equalize Digital Accessibility Checker <= 1.42.1 - Missing Authorization to Authenticated (Author+) Arbitrary Accessibility Issue Modification via 'largeBatch' Parameter
- 4.3MediumCVSS base score
- 0.24%Exploitation in 30 daysEPSS · top 85% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
The Equalize Digital Accessibility Checker – WCAG, ADA, EAA and Section 508 compliance plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 1.42.1. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with author-level access and above, to dismiss, ignore, or restore accessibility audit issue records belonging to posts they are not permitted to edit by supplying an issue from their own post as an authorization token to affect matching issues across the entire site. An Author-level user can exploit this by passing largeBatch=true on a dismiss-issue request referencing one of their own post's issues, causing the handler to bulk-modify all site-wide accessibility issues sharing the same 'object' value — including those belonging to administrator-owned posts.
Timeline
ID reserved
By Wordfence
- 28 days later
· 28 days later
Published
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| WordfenceCNA (assigner) | 3.1 | Medium4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N |
| NVDNVD · Deferred | 3.1 | Medium4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N |
- EPSS (exploitation in 30 days)
- 0.24% · top 85% of all CVEs (11 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.3.
Affected products
References
References8
- https://www.wordfence.com/threat-intel/vulnerabilities/id/0e5cc0ce-3785-4240-863e-d1396db6e8ef?source=cve (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/accessibility-checker/tags/1.42.0/includes/classes/class-rest-api.php#L1247 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/accessibility-checker/tags/1.42.0/includes/classes/class-rest-api.php#L1232 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/accessibility-checker/tags/1.42.0/includes/classes/class-rest-api.php#L349 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/accessibility-checker/tags/1.39.0/includes/classes/class-rest-api.php#L1247 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/accessibility-checker/tags/1.39.0/includes/classes/class-rest-api.php#L1232 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/accessibility-checker/tags/1.39.0/includes/classes/class-rest-api.php#L349 (opens in a new tab)
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3553926%40accessibility-checker&new=3553926%40accessibility-checker&sfp_email=&sfph_mail= (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-37837 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-9199)Record last updated .