CVE-2026-7622: CWE-862 Missing Authorization in codexpert ThumbPress – Compress Images, Manage Thumbnails, Detect Image Issues, WebP/AVIF, Lazy Loading, Hotlinking & More
The ThumbPress WordPress plugin up to version 6.2.1 has a missing authorization vulnerability in the send_deactivation_survey() function. This flaw allows authenticated users with Subscriber-level access or higher to deactivate the plugin via a crafted AJAX request without proper capability checks or nonce verification.
AI Analysis
Technical Summary
CVE-2026-7622 describes a missing authorization vulnerability (CWE-862) in the ThumbPress plugin for WordPress versions up to and including 6.2.1. The vulnerability arises because the send_deactivation_survey() function, which is registered to the wp_ajax_pl-plugin-deactivation AJAX action, lacks proper capability checks and nonce verification. As a result, authenticated attackers with low-level privileges (Subscriber and above) can send a crafted POST request to admin-ajax.php to deactivate the ThumbPress plugin on the affected site.
Potential Impact
An attacker with Subscriber-level access or higher can deactivate the ThumbPress plugin without authorization. This could disrupt image compression, thumbnail management, and other related functionalities provided by the plugin, potentially impacting site operations or user experience. There is no direct confidentiality or availability impact reported beyond the plugin deactivation.
Mitigation Recommendations
No official patch or fix is currently referenced. Users should monitor the vendor's advisory for updates. Until a fix is available, restrict Subscriber-level users from sending unauthorized AJAX requests if possible, or consider disabling the plugin temporarily if low-privilege users are untrusted. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance.
CVE-2026-7622: CWE-862 Missing Authorization in codexpert ThumbPress – Compress Images, Manage Thumbnails, Detect Image Issues, WebP/AVIF, Lazy Loading, Hotlinking & More
Description
The ThumbPress WordPress plugin up to version 6.2.1 has a missing authorization vulnerability in the send_deactivation_survey() function. This flaw allows authenticated users with Subscriber-level access or higher to deactivate the plugin via a crafted AJAX request without proper capability checks or nonce verification.
CVSS v3.1
Score 4.3medium
Affected software
codexpert
ThumbPress – Compress Images, Manage Thumbnails, Detect Image Issues, WebP/AVIF, Lazy Loading, Hotlinking & More
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-7622 describes a missing authorization vulnerability (CWE-862) in the ThumbPress plugin for WordPress versions up to and including 6.2.1. The vulnerability arises because the send_deactivation_survey() function, which is registered to the wp_ajax_pl-plugin-deactivation AJAX action, lacks proper capability checks and nonce verification. As a result, authenticated attackers with low-level privileges (Subscriber and above) can send a crafted POST request to admin-ajax.php to deactivate the ThumbPress plugin on the affected site.
Potential Impact
An attacker with Subscriber-level access or higher can deactivate the ThumbPress plugin without authorization. This could disrupt image compression, thumbnail management, and other related functionalities provided by the plugin, potentially impacting site operations or user experience. There is no direct confidentiality or availability impact reported beyond the plugin deactivation.
Mitigation Recommendations
No official patch or fix is currently referenced. Users should monitor the vendor's advisory for updates. Until a fix is available, restrict Subscriber-level users from sending unauthorized AJAX requests if possible, or consider disabling the plugin temporarily if low-privilege users are untrusted. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Wordfence
- Date Reserved
- 2026-05-01T13:33:24.361Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6ab23646f7a7c54106e0460b
Added to database: 09/22/2026, 08:03:18 UTC
Last enriched: 09/22/2026, 08:19:04 UTC
Last updated: 09/22/2026, 17:19:49 UTC
Views: 11
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