Vulnerability · Published Oct 3, 2026 · Assigned by Wordfence

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

Medium 4.3

In plain English

A medium-severity missing authorization in Alt Text AI – Automatically generate image alt text for SEO and accessibility from alttextai. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 12% of all known vulnerabilities).

Severity (CVSS 3.1)4.3Medium

Exploit odds (30 days)0.2%top 88.3% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
alttextai	Alt Text AI – Automatically generate image alt text for SEO and accessibility	0 – through 1.10.41

Weakness: CWE-862 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

In plain English

Official description

Affected products (as reported)

References