Auth bypass in Codexpert Thumbpress – Compress Images, Manage Thumbnails, Detect Image Issues, Webp/avif, Lazy Loading, Hotlinking & More

CVE-2026-7622

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.

Vulnerability class: Broken Access Control

Published · last modified .

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.004 (29.2th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 29th percentile — 29.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-7622: held from 0.004 to 0.004.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-7622?
CVE-2026-7622 is a medium-severity vulnerability in Codexpert Thumbpress – Compress Images, Manage Thumbnails, Detect Image Issues, Webp/avif, Lazy Loading, Hotlinking & More, classified under Missing Authorization. CVSS score: 4.3/10. Published 2026-09-22.
How severe is CVE-2026-7622?
Medium severity. CVSS v3 base score is 4.3 out of 10.