{"id":"CVE-2023-1166","aliases":["EUVD-2023-23448","GHSA-chj2-8247-g69q"],"status":"published","title":"USM Premium \u003c 16.3 - Admin+ Stored XSS","description":"The USM-Premium WordPress plugin before 16.3 does not sanitize and escape some of its settings, which could allow high-privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example, in multisite setup).","severity":{"version":"3.1","score":4.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.00477,"percentile":0.41503,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2023-06-27T13:17:21Z","modified":"2026-06-17T05:27:16Z","products":[{"vendor":"ultimatelysocial","product":"usm_premium"},{"vendor":"unknown","product":"ultimate-premium-plugin"}],"references":[{"url":"https://wpscan.com/vulnerability/825eccf9-f351-4a5b-b238-9969141b94fa","tags":["exploit","vdb-entry","technical-description","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-1166"},{"url":"https://github.com/advisories/GHSA-chj2-8247-g69q"}],"sources":{"cve":[{"id":"CVE-2023-1166","title":"USM Premium \u003c 16.3 - Admin+ Stored XSS","description":"The USM-Premium WordPress plugin before 16.3 does not sanitize and escape some of its settings, which could allow high-privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example, in multisite setup).","status":"published","published":"2023-06-27T13:17:21.743Z","modified":"2024-11-27T19:15:26.442Z","updated_at":"2026-11-02T14:35:32.019713Z"}],"euvd":[{"id":"EUVD-2023-23448","description":"The USM-Premium WordPress plugin before 16.3 does not sanitize and escape some of its settings, which could allow high-privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example, in multisite setup).","status":"published","published":"2023-06-27T13:17:21Z","modified":"2024-11-27T19:15:26Z","cvss":[{"version":"","score":0,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N","level":"none"}],"updated_at":"2026-11-03T00:04:45.257697Z"}],"ghsa":[{"id":"GHSA-chj2-8247-g69q","title":"The USM-Premium WordPress plugin before 16.3 does not sanitize and escape some of its settings,...","description":"The USM-Premium WordPress plugin before 16.3 does not sanitize and escape some of its settings, which could allow high-privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example, in multisite setup).","status":"published","published":"2023-06-27T15:30:28Z","modified":"2024-04-04T05:11:56Z","cvss":[{"version":"3.1","score":4.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:56:30.04858Z"}],"nvd":[{"id":"CVE-2023-1166","description":"The USM-Premium WordPress plugin before 16.3 does not sanitize and escape some of its settings, which could allow high-privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example, in multisite setup).","status":"published","published":"2023-06-27T14:15:10.277Z","modified":"2026-06-17T05:27:16.037Z","cvss":[{"version":"3.1","score":4.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:08:14.715708Z"}]}}