{"id":"CVE-2026-12089","aliases":["EUVD-2026-36635","GHSA-cx9x-fm2c-c65m"],"status":"published","title":"WS Optimize – All-in-One Speed Booster \u0026 Cache Tools \u003c= 3.3.19 - Authenticated (Editor+) Arbitrary File Read","description":"The LWS Optimize – All-in-One Speed Booster \u0026 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 \u003clink rel=\"stylesheet\" href=\"...\"\u003e 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.","severity":{"version":"3.1","score":4.9,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00336,"percentile":0.2737,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-22"],"published":"2026-06-13T02:29:02Z","modified":"2026-07-23T09:10:00Z","products":[{"vendor":"aurelienlws","product":"lws optimize – all-in-one speed booster \u0026 cache tools"}],"references":[{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/5cb80db2-753c-40fa-aee4-7d8c1749d037?source=cve"},{"url":"https://plugins.trac.wordpress.org/browser/lws-optimize/tags/3.3.19/Classes/Front/LwsOptimizeCSSManager.php#L289"},{"url":"https://plugins.trac.wordpress.org/browser/lws-optimize/tags/3.3.19/Classes/Front/LwsOptimizeCSSManager.php#L61"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-12089"},{"url":"https://github.com/advisories/GHSA-cx9x-fm2c-c65m"}],"sources":{"cve":[{"id":"CVE-2026-12089","title":"WS Optimize – All-in-One Speed Booster \u0026 Cache Tools \u003c= 3.3.19 - Authenticated (Editor+) Arbitrary File Read","description":"The LWS Optimize – All-in-One Speed Booster \u0026 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 \u003clink rel=\"stylesheet\" href=\"...\"\u003e 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.","status":"published","published":"2026-06-13T02:29:02.487Z","modified":"2026-06-15T12:57:04.691Z","cvss":[{"version":"3.1","score":4.9,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T14:19:47.998488Z"}],"euvd":[{"id":"EUVD-2026-36635","description":"The LWS Optimize – All-in-One Speed Booster \u0026 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 \u003clink rel=\"stylesheet\" href=\"...\"\u003e 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.","status":"published","published":"2026-06-13T02:29:02Z","modified":"2026-06-15T12:57:04Z","cvss":[{"version":"3.1","score":4.9,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T18:20:42.360452Z"}],"ghsa":[{"id":"GHSA-cx9x-fm2c-c65m","title":"The LWS Optimize – All-in-One Speed Booster \u0026 Cache Tools plugin for WordPress is vulnerable to...","description":"The LWS Optimize – All-in-One Speed Booster \u0026 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 \u003clink rel=\"stylesheet\" href=\"...\"\u003e 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.","status":"published","published":"2026-06-13T03:30:23Z","modified":"2026-06-13T03:30:30Z","cvss":[{"version":"3.1","score":4.9,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T15:08:45.788743Z"}],"nvd":[{"id":"CVE-2026-12089","description":"The LWS Optimize – All-in-One Speed Booster \u0026 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 \u003clink rel=\"stylesheet\" href=\"...\"\u003e 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.","status":"published","published":"2026-06-13T03:16:19.573Z","modified":"2026-07-23T09:10:00.113Z","cvss":[{"version":"3.1","score":4.9,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T14:12:23.846948Z"}]}}