WordPress security changelog
CRITICAL CVE-2023-6699 Modified

WP Compress – Image Optimizer [All-In-One]: Filesystem traversal

WP Compress – Image Optimizer [All-In-One] is affected by filesystem traversal. The vulnerable path is reachable without authentication. A crafted path can escape the intended directory and reach files or directories elsewhere on the server.

CVE / CNA score 9.1 CVSS 3.1 · security@wordfence.com
NVD score 7.5 CVSS 3.1 · nvd@nist.gov
Component
WP Compress – Image Optimizer [All-In-One]
Plugin slug
wp-compress
Affected
See vendor advisory
Safe version
See mitigation notes
Published
Jan 11, 2024
Weakness
CWE-24 — Path Traversal: '../filedir'
CWE-22 — Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

This CVE was published Jan 11, 2024 and is one of 6 known issues for this plugin.

Update, patch or deactivate.

Update WP Compress – Image Optimizer [All-In-One] to a release outside the affected range, or disable and remove it until a fixed version is available.

No confirmed safe version is listed. Consider a vendor-supported patch or temporarily restricting the affected functionality while you assess the risk.

Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.

Technical description

The WP Compress – Image Optimizer [All-In-One] plugin for WordPress is vulnerable to Directory Traversal in all versions up to, and including, 6.10.33 via the css parameter. This makes it possible for unauthenticated attackers to read the contents of arbitrary files on the server, which can contain sensitive information.

CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

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

Primary and upstream sources