CVE-2023-6699: 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

critical Affects wp-compress-image-optimizer (WordPress plugin). Feed 2026.10.29.1, updated 2026-10-28; published 2024-01-11; advisory modified 2026-06-17.

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

Package: wp-compress-image-optimizer (WordPress plugin) WordPress
Affected versions: <=6.10.33
Fixed in: no fix recorded
Severity: critical CVSS 9.1
Exploitation: not on CISA KEV · EPSS 1% (58.5th percentile)
Published: 2024-01-11
Source: nvd

References

CWE-22 CWE-24

NVD record wp-compress-image-optimizer (WordPress plugin) advisories

Am I affected?

Find out in one command. phpwarden checks your WordPress install against this advisory and 20,000+ others, ranked by real-world exploitation (CISA KEV + EPSS). Free, offline, open data.

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# then
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Or keep it checked automatically with the GitHub Action or a nightly cron; see WordPress docs.

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