ByteOS Network

CVE Vulnerability Details :

CVE-2026-12089

PUBLISHED

More Info Official Page

Assigner-Wordfence

Assigner Org ID-b15e7b5b-3da4-40ae-a43c-f7aa60e62599

Published At-13 Jun, 2026 | 02:29

Updated At-13 Jun, 2026 | 02:29

▼CVE Numbering Authority (CNA)

WS Optimize – All-in-One Speed Booster & Cache Tools <= 3.3.19 - Authenticated (Editor+) Arbitrary File Read

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.

Affected Products

Vendor

aurelienlws

Product

LWS Optimize – All-in-One Speed Booster & Cache Tools

Default Status

unaffected

Versions

Affected

From 0 through 3.3.19 (semver)

Problem Types

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

Type: CWE

CWE ID: CWE-22

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

Metrics

Version	Base score	Base severity	Vector
3.1	4.9	MEDIUM	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

Version: 3.1

Base score: 4.9

Base severity: MEDIUM

Vector:

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

Credits

finder

Omar Elshopky

Timeline

Event	Date
Disclosed	2026-06-12 14:06:04

Event: Disclosed

Date: 2026-06-12 14:06:04

References

Hyperlink	Resource
https://www.wordfence.com/threat-intel/vulnerabilities/id/5cb80db2-753c-40fa-aee4-7d8c1749d037?source=cve	N/A
https://plugins.trac.wordpress.org/browser/lws-optimize/tags/3.3.19/Classes/Front/LwsOptimizeCSSManager.php#L289	N/A
https://plugins.trac.wordpress.org/browser/lws-optimize/tags/3.3.19/Classes/Front/LwsOptimizeCSSManager.php#L61	N/A

Hyperlink: https://www.wordfence.com/threat-intel/vulnerabilities/id/5cb80db2-753c-40fa-aee4-7d8c1749d037?source=cve

Resource: N/A

Hyperlink: https://plugins.trac.wordpress.org/browser/lws-optimize/tags/3.3.19/Classes/Front/LwsOptimizeCSSManager.php#L289

Resource: N/A

Hyperlink: https://plugins.trac.wordpress.org/browser/lws-optimize/tags/3.3.19/Classes/Front/LwsOptimizeCSSManager.php#L61

Resource: N/A

Affected Products

Affected

Problem Types

Metrics

Metrics Other Info

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Exploits

Credits

Timeline

Replaced By

Rejected Reason

References