What’s Vulnerable › Vulnerabilities

CVE-2024-1934: WP Compress – Image Optimizer <= 6.11.08 - Missing Authorization to Unauthenticated CDN Modification

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-04-09 · updated 2026-06-17
• Weakness: CWE-862

Description

The WP Compress – Image Optimizer plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the 'wps_local_compress::__construct' function in all versions up to, and including, 6.11.10. This makes it possible for unauthenticated attackers to reset the CDN region and set a malicious URL to deliver images.

Affected products

• aresit WP Compress – Instant Performance & Speed Optimization: before 6.11.11 — fixed in 6.11.11

How to fix

Upgrade to a fixed version: aresit WP Compress – Instant Performance & Speed Optimization 6.11.11. Check the vendor advisory for mitigations.

References

• https://plugins.trac.wordpress.org/browser/wp-compress-image-optimizer/tags/6.10.35/addons/legacy/compress.php
• https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3054445@wp-compress-image-optimizer/trunk&old=3048575@wp-compress-image-optimizer/trunk&sfp_email=&sfph_mail=#file2
• https://www.wordfence.com/threat-intel/vulnerabilities/id/88a46a24-6d46-44cc-ac01-70a1c329cb51?source=cve
• https://plugins.trac.wordpress.org/browser/wp-compress-image-optimizer/tags/6.10.35/addons/legacy/compress.php
• https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3054445@wp-compress-image-optimizer/trunk&old=3048575@wp-compress-image-optimizer/trunk&sfp_email=&sfph_mail=#file2
• https://www.wordfence.com/threat-intel/vulnerabilities/id/88a46a24-6d46-44cc-ac01-70a1c329cb51?source=cve

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