Vulnerability Description
The TinyPNG – JPEG, PNG & WebP image compression plugin for WordPress is vulnerable to arbitrary file deletion due to insufficient file path validation in the delete_converted_image_size function in all versions up to, and including, 3.6.13. This makes it possible for authenticated attackers, with author-level access and above, to delete arbitrary files on the server, which can easily lead to remote code execution when the right file is deleted (such as wp-config.php). An attacker can exploit this by injecting an arbitrary server file path into the 'convert.path' field of the 'tiny_compress_images' post meta on an attachment they own, then triggering attachment deletion to invoke the vulnerable code path.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://plugins.trac.wordpress.org/browser/tiny-compress-images/tags/3.6.13/src/
- https://plugins.trac.wordpress.org/browser/tiny-compress-images/tags/3.6.13/src/
- https://plugins.trac.wordpress.org/browser/tiny-compress-images/tags/3.6.13/src/
- https://plugins.trac.wordpress.org/browser/tiny-compress-images/tags/3.6.13/src/
- https://plugins.trac.wordpress.org/changeset/3532827/tiny-compress-images
- https://www.wordfence.com/threat-intel/vulnerabilities/id/eb8a673e-a192-41d4-b53
FAQ
What is CVE-2026-7311?
CVE-2026-7311 is a vulnerability with a CVSS score of 8.1 (HIGH). The TinyPNG – JPEG, PNG & WebP image compression plugin for WordPress is vulnerable to arbitrary file deletion due to insufficient file path validation in the delete_converted_image_size function in a...
How severe is CVE-2026-7311?
CVE-2026-7311 has been rated HIGH with a CVSS base score of 8.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-7311?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.