Alt Text AI <= 1.10.41 - Missing Authorization to Authenticated (Subscriber+) Arbitrary Post Content Modification via atai_enrich_post_content AJAX Action (CVE-2026-91108)

Why this deserves its current priority

CVSS is 4.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps alttextai/Alt Text AI – Automatically generate image alt text for SEO and accessibility (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
alttextai/Alt Text AI – Automatically generate image alt text for SEO and accessibilitygeneric	>=0 <=1.10.41	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for alttextai/Alt Text AI – Automatically generate image alt text for SEO and accessibility.
Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

Published upstream
Oct 3, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Oct 3, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Oct 3, 2026

Sources and claim methodology

Upstream source description

The Alt Text AI – Automatically generate image alt text for SEO and accessibility plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 1.10.41. 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 subscriber-level access and above, to overwrite the post_content of any post or page on the site — including content they do not own — with LLM-generated text influenced by attacker-controlled keywords, enabling black-hat SEO manipulation and unauthorized consumption of the site owner's paid AltText.ai API credits. The nonce required to invoke the action is emitted on every admin page including /wp-admin/profile.php, which is accessible to Subscribers, making the nonce trivially obtainable by any authenticated user.

Quoted source text, attributed separately from HOL analysis.