Missing authorization in alttextai Alt Text AI – Automatically generate image alt text…
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-862.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| alttextai | Alt Text AI – Automatically generate image alt text for SEO and accessibility | up to 1.10.41 | — | No fix listed | CNA |
- Alt Text AI – Automatically generate image alt text for SEO and accessibility Vendoralttextai Affected up to 1.10.41 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-03 Threatist record created from CVE-2026-91108
- 2026-10-03 Alias added: GHSA-7xvf-jr7g-ffgw
- 2026-10-03 CISA SSVC decision points changed
References
Other 5
- https://www.wordfence.com/threat-intel/vulnerabilities/id/216e3087-52f1-4b2e-a31c-0c2ddf41aefb?source=cve
- https://plugins.trac.wordpress.org/browser/alttext-ai/tags/1.10.38/includes/class-atai-post.php#L275
- https://plugins.trac.wordpress.org/browser/alttext-ai/tags/1.10.38/includes/class-atai.php#L271
- https://plugins.trac.wordpress.org/browser/alttext-ai/tags/1.10.38/admin/class-atai-admin.php#L75
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3723468%40alttext-ai&new=3723468%40alttext-ai
More alttextai vulnerabilities
- TI-2024-04510 SQL injection in alttextai Alt Text AI – Automatically generate image alt text for SEO… CVSS 3.1HIGH 8.8
- TI-2026-20466 WordPress Download Alt Text AI plugin <= 1.10.15 - Broken Access Control vulnerability CVSS 3.1MEDIUM 5.3
- TI-2024-22706 WordPress AltText.ai plugin <= 1.3.4 - Cross Site Scripting (XSS) vulnerability CVSS 3.1MEDIUM 5.9
Sources
- CVE-2026-91108 · CVE Program
- CVE-2026-91108 · NVD
- FIRST EPSS
- GHSA-7xvf-jr7g-ffgw · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences