PatchSiren cyber security CVE debrief
CVE-2026-9199 equalizedigital CVE debrief
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.
- Vendor
- equalizedigital
- Product
- Equalize Digital Accessibility Checker – WCAG, ADA, EAA and Section 508 compliance
- CVSS
- MEDIUM 4.3
- CISA KEV
- Not listed in stored evidence
- Original CVE published
- 2026-06-18
- Original CVE updated
- 2026-06-18
- Advisory published
- 2026-06-18
- Advisory updated
- 2026-06-18
Who should care
Administrators of WordPress sites using the Equalize Digital Accessibility Checker plugin, especially those with author-level users, should be aware of this vulnerability and take immediate action to protect their sites.
Technical summary
The vulnerability exists due to insufficient authorization checks in the plugin. An authenticated attacker with author-level access 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.
Defensive priority
High
Recommended defensive actions
- Update the Equalize Digital Accessibility Checker plugin to a version beyond 1.42.1.
- Restrict access to the plugin's functionality for users with author-level access and above.
- Monitor for suspicious activity related to accessibility audit issue records.
- Implement additional security measures to protect against unauthorized actions.
- Review compensating controls for exposed systems while remediation is scheduled and verified.
- Check relevant monitoring, detection, and logs for exposed assets that need extra review.
- Track exceptions, retest remediated assets, and close the item only after evidence is documented.
Evidence notes
The CVE record was published on 2026-06-18T06:16:58.057Z and was last modified on 2026-06-18T15:23:56.087Z. The NVD entry is currently Deferred. Evidence is limited to public sources and may not reflect the full scope or impact of the vulnerability. Defenders should verify affected deployments and assess potential exposure based on available information.
Official resources
AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-06-18T06:16:58.057Z and has not been modified since then. The NVD entry is currently Deferred.