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Vulnerability record · CVE-2026-7311 · published 2 July 2026

CVE-2026-7311: Path traversal vulnerability

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.

8.1 CVSS 3.1 High EPSS 1.0% · top 37.6% CWE-22 · Path traversal Deferred
8.1CVSS 3.1 base score
1.0%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
6References
6 Jul 2026Last modified by NVD

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:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

References

LinkTags
https://plugins.trac.wordpress.org/browser/tiny-compress-images/tags/3.6.13/src/class-tiny-image-size.php#L245
https://plugins.trac.wordpress.org/browser/tiny-compress-images/tags/3.6.13/src/class-tiny-image.php#L144
https://plugins.trac.wordpress.org/browser/tiny-compress-images/tags/3.6.13/src/class-tiny-plugin.php#L859
https://plugins.trac.wordpress.org/browser/tiny-compress-images/tags/3.6.13/src/config/class-tiny-config.php#L12
https://plugins.trac.wordpress.org/changeset/3532827/tiny-compress-images
https://www.wordfence.com/threat-intel/vulnerabilities/id/eb8a673e-a192-41d4-b53b-7d786887242d?source=cve

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Source: NIST National Vulnerability Database (record CVE-2026-7311), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.