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.
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Affected Vendors & Products
References
History
Sat, 13 Jun 2026 02:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Title | WS Optimize – All-in-One Speed Booster & Cache Tools <= 3.3.19 - Authenticated (Editor+) Arbitrary File Read | |
| Weaknesses | CWE-22 | |
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cvssV3_1
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Status: PUBLISHED
Assigner: Wordfence
Published: 2026-06-13T02:29:02.487Z
Updated: 2026-06-13T02:29:02.487Z
Reserved: 2026-06-12T13:57:55.876Z
Link: CVE-2026-12089
No data.
Status : Received
Published: 2026-06-13T03:16:19.573
Modified: 2026-06-13T03:16:19.573
Link: CVE-2026-12089
No data.