How severe is CVE-2023-6699?

Critical severity. CVSS v3 base score is 9.1 out of 10.

Is CVE-2023-6699 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Path Traversal in Aresit Wp Compress – Instant Performance & Speed Optimization

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 unauthenticated attackers to read the contents of arbitrary files on the server, which can contain sensitive information.

Published 2024-01-11 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.

EPSS exploit prediction

EPSS: 0.009 (56.9th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 57th percentile — 56.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: -0.000

Affected products

Aresit Wp Compress – Instant Performance & Speed Optimization — versions 0
Wpcompress Wp Compress

Weakness classification (CWE)

Public proof-of-concept exploits

20142995/nuclei-templates

References

www.wordfence.com/threat-intel/vulnerabilities/id/defb87dd-bf5f-411f-b948-69933… (Product, Third Party Advisory)
plugins.trac.wordpress.org/changeset (Patch)

Frequently asked questions

What is CVE-2023-6699?: CVE-2023-6699 is a critical-severity vulnerability in Aresit Wp Compress – Instant Performance & Speed Optimization, classified under CWE-24. CVSS score: 9.1/10. Published 2024-01-11.
How severe is CVE-2023-6699?: Critical severity. CVSS v3 base score is 9.1 out of 10.
Is CVE-2023-6699 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.