# CVE-2026-120578: AI Alt Text Generator authorization bypass in attachment modification

Source: https://junglewise.ai/threats/cve-2026-120578-the-ai-alt-text-generator-plugin-for-wordpress-is-vulnerable-to  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-11-03. Updated: 2026-11-03  
License: CC BY 4.0 with a link back

CVE-2026-120578 · Severity: medium · CVSS 5.3 · Published 2026-11-03

The AI Alt Text Generator plugin for WordPress fails to properly verify user permissions when modifying attachment metadata. An attacker with a Contributor account can use a stolen or guessed nonce to alter alt text, titles, captions, and descriptions on attachments belonging to other users, potentially exposing sensitive information or defacing media galleries.

Vendors: [Wordpress](https://junglewise.ai/threats/vendors/wordpress).

## Quick answers

**Is CVE-2026-120578 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-120578 being exploited in the wild.

**How severe is CVE-2026-120578?** Medium severity, with a CVSS score of 5.3, published 3 November 2026.

**Which products and versions are affected?** Wordpress AI Alt Text Generator up to and including 2.7.0.

**Is there a fix for CVE-2026-120578?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-120578 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-120578?** Check whether you run Wordpress AI Alt Text Generator at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

The plugin lacks authorization checks when processing attachment metadata updates, allowing authenticated contributors to modify arbitrary attachments. The vulnerability requires obtaining a valid nonce from the WordPress post editing pages and having at minimum a Contributor-level account. Additional functionality (title, caption, description modifications) requires specific plugin options to be enabled.

## Affected products

- WordPress AI Alt Text Generator up to and including 2.7.0

## Timeline

- 2026-11-03: disclosed

## References

- [https://plugins.trac.wordpress.org/browser/ai-alt-text-generator/tags/2.7.0/admin/class-ai-alt-text-generator-admin.php](https://plugins.trac.wordpress.org/browser/ai-alt-text-generator/tags/2.7.0/admin/class-ai-alt-text-generator-admin.php)
- [https://plugins.trac.wordpress.org/browser/ai-alt-text-generator/tags/2.7.0/includes/class-ai-alt-text-generator.php](https://plugins.trac.wordpress.org/browser/ai-alt-text-generator/tags/2.7.0/includes/class-ai-alt-text-generator.php)