{"id":"CVE-2023-6938","aliases":["EUVD-2023-59136","GHSA-jr6g-cpw8-93hj"],"status":"published","title":"Oxygen Builder \u003c= 4.8 - Authenticated (Contributor+) Stored Cross-Site Scripting via Custom Field","description":"The Oxygen Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via a custom field in all versions up to, and including, 4.8 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. NOTE: Version 4.8.1 of the Oxygen Builder plugin for WordPress addresses this vulnerability by implementing an optional filter to provide output escaping for dynamic data. Please see https://oxygenbuilder.com/documentation/other/security/#filtering-dynamic-data for more details.","severity":{"version":"3.1","score":6.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00312,"percentile":0.24303,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2024-01-11T14:32:23Z","modified":"2026-06-17T06:51:43Z","products":[{"vendor":"oxygen builder","product":"oxygen builder"},{"vendor":"soflyy","product":"oxygen"}],"references":[{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/ee069cb3-370e-48ea-aa35-c30fe83c2498?source=cve","tags":["x_transferred","Patch","Third Party Advisory"]},{"url":"https://oxygenbuilder.com/oxygen-4-8-1-now-available/","tags":["x_transferred","Patch","Release Notes"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-6938"},{"url":"https://oxygenbuilder.com/oxygen-4-8-1-now-available"},{"url":"https://github.com/advisories/GHSA-jr6g-cpw8-93hj"}],"sources":{"cve":[{"id":"CVE-2023-6938","title":"Oxygen Builder \u003c= 4.8 - Authenticated (Contributor+) Stored Cross-Site Scripting via Custom Field","description":"The Oxygen Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via a custom field in all versions up to, and including, 4.8 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. NOTE: Version 4.8.1 of the Oxygen Builder plugin for WordPress addresses this vulnerability by implementing an optional filter to provide output escaping for dynamic data. Please see https://oxygenbuilder.com/documentation/other/security/#filtering-dynamic-data for more details.","status":"published","published":"2024-01-11T14:32:23.606Z","modified":"2026-04-08T17:31:42.954Z","cvss":[{"version":"3.1","score":6.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:35:25.095989Z"}],"euvd":[{"id":"EUVD-2023-59136","description":"The Oxygen Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via a custom field in all versions up to, and including, 4.8 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. NOTE: Version 4.8.1 of the Oxygen Builder plugin for WordPress addresses this vulnerability by implementing an optional filter to provide output escaping for dynamic data. Please see https://oxygenbuilder.com/documentation/other/security/#filtering-dynamic-data for more details.","status":"published","published":"2024-01-11T14:32:23Z","modified":"2026-04-08T17:31:42Z","cvss":[{"version":"3.1","score":6.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T19:24:34.922971Z"}],"ghsa":[{"id":"GHSA-jr6g-cpw8-93hj","title":"The Oxygen Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via a custom...","description":"The Oxygen Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via a custom field in all versions up to, and including, 4.8 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. NOTE: Version 4.8.1 of the Oxygen Builder plugin for WordPress addresses this vulnerability by implementing an optional filter to provide output escaping for dynamic data. Please see https://oxygenbuilder.com/documentation/other/security/#filtering-dynamic-data for more details.","status":"published","published":"2024-01-11T15:30:27Z","modified":"2026-04-08T21:33:16Z","cvss":[{"version":"3.1","score":6.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:07:21.520973Z"}],"nvd":[{"id":"CVE-2023-6938","description":"The Oxygen Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via a custom field in all versions up to, and including, 4.8 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. NOTE: Version 4.8.1 of the Oxygen Builder plugin for WordPress addresses this vulnerability by implementing an optional filter to provide output escaping for dynamic data. Please see https://oxygenbuilder.com/documentation/other/security/#filtering-dynamic-data for more details.","status":"published","published":"2024-01-11T15:15:08.41Z","modified":"2026-06-17T06:51:43.413Z","cvss":[{"version":"3.1","score":6.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","level":"medium","assessor":"secondary"},{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:09:00.788714Z"}]}}