How severe is CVE-2026-12089?

Medium severity. CVSS v3 base score is 4.9 out of 10.

Path Traversal in Aurelienlws Lws Optimize – All-in-one Speed Booster & Cache Tools

Q: What is CVE-2026-12089?

CVE-2026-12089 is a medium-severity vulnerability in Aurelienlws Lws Optimize – All-in-one Speed Booster & Cache Tools, classified under Path Traversal. CVSS score: 4.9/10. Published 2026-06-13.

CVE-2026-12089

The LWS Optimize – All-in-One Speed Booster & Cache Tools plugin for WordPress is vulnerable to Arbitrary File Read in versions up to, and including, 3.3.19. This is due to the combine_current_css() function trusting <link rel="stylesheet…

Vulnerability class: Path Traversal (Directory Traversal)

EPSS: 0.003 (26.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.9 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N.

Affected products

Aurelienlws Lws Optimize – All-in-one Speed Booster & Cache Tools — versions 0

Weakness classification (CWE)

CWE-22 — Path Traversal

References

Frequently asked questions

What is CVE-2026-12089?: CVE-2026-12089 is a medium-severity vulnerability in Aurelienlws Lws Optimize – All-in-one Speed Booster & Cache Tools, classified under Path Traversal. CVSS score: 4.9/10. Published 2026-06-13.
How severe is CVE-2026-12089?: Medium severity. CVSS v3 base score is 4.9 out of 10.