CVE Catalog

CVE-2026-91108

MediumCVSS 4.3
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.21%

11th percentile - higher than 11% of all known CVEs

Summary

The Alt Text AI – Automatically generate image alt text for SEO and accessibility plugin for WordPress in versions up to and including 1.10.41 is vulnerable to authorization bypass due to improper verification that a user is authorized to perform an action. An authenticated attacker with subscriber-level access or higher can overwrite the post_content of any post or page with LLM-generated text, influencing SEO and consuming paid AltText.ai API credits.

Risk Assessment

An attacker can perform black-hat SEO manipulation and unauthorized consumption of the site owner's paid API credits, potentially leading to financial losses and reputational damage.

Recommendation

Update the Alt Text AI plugin to a version newer than 1.10.41 or disable it until a fix is released.

Related vulnerabilities

Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS