CVE-2026-12089 | The LWS Optimize – All-in-One Speed Booster & Cache Tools pl… | CVSS 4.9 MEDIUM

Description

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" href="..."> values harvested from page HTML and converting same-site URLs to absolute filesystem paths before reading them with file_get_contents()/Minify\CSS::add(), without enforcing that the resolved path stay within ABSPATH or have a .css extension. This makes it possible for authenticated attackers, with Editor-level access and above, to read arbitrary files.

Metadata

CVE ID: CVE-2026-12089
State: PUBLISHED
Assigner: Wordfence
Reserved: 2026-06-12 13:57 UTC
Published: 2026-06-13 02:29 UTC
Last updated: 2026-06-13 02:29 UTC
Primary CWE: CWE-22
CWE-22 Improper Limitation of a Pathname to a Restricted Dir…
Vendor / Product: aurelienlws / LWS Optimize – All-in-One Speed Booster & Cache Tools
Sources: cve.org · NVD

Severity & Metrics

4.9 MEDIUM CVSS 3.1

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

Affected products (1)

Vendor	Product	Platform	Versions
aurelienlws	LWS Optimize – All-in-One Speed Booster & Cache Tools	—	0 ≤ 3.3.19

Weakness (CWE)

CWE	Source	Description
CWE-22	cna	CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

CVSS scores (1)

Score	Severity	Version	Source	Vector
4.9	MEDIUM	3.1	cna	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

References (3)