{"id":"CVE-2025-3581","aliases":["EUVD-2025-17435","GHSA-f9xh-499r-w9qx"],"status":"published","title":"Newsletter \u003c 8.8.5 - Admin+ Stored XSS via Widget","description":"The Newsletter  WordPress plugin before 8.8.5 does not validate and escape some of its Widget options before outputting them back in a page/post where the block is embed, 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":"adp","from":"cve"},"epss":{"day":"2026-11-09","score":0.00269,"percentile":0.1915,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2025-06-09T06:00:01Z","modified":"2026-06-17T09:20:14Z","products":[{"vendor":"stefano lissa","product":"newsletter"},{"vendor":"thenewsletterplugin","product":"newsletter"},{"vendor":"unknown","product":"newsletter"}],"references":[{"url":"https://wpscan.com/vulnerability/2d96f018-510d-40ab-9e73-76fa44784813/","tags":["exploit","vdb-entry","technical-description","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-3581"},{"url":"https://wpscan.com/vulnerability/2d96f018-510d-40ab-9e73-76fa44784813"},{"url":"https://github.com/advisories/GHSA-f9xh-499r-w9qx"}],"sources":{"cve":[{"id":"CVE-2025-3581","title":"Newsletter \u003c 8.8.5 - Admin+ Stored XSS via Widget","description":"The Newsletter  WordPress plugin before 8.8.5 does not validate and escape some of its Widget options before outputting them back in a page/post where the block is embed, 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":"2025-06-09T06:00:01.73Z","modified":"2025-06-10T15:13:27.616Z","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":"adp"}],"updated_at":"2026-11-02T14:32:39.378527Z"}],"euvd":[{"id":"EUVD-2025-17435","description":"The Newsletter  WordPress plugin before 8.8.5 does not validate and escape some of its Widget options before outputting them back in a page/post where the block is embed, 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":"2025-06-09T06:00:01Z","modified":"2025-06-10T15:13:27Z","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"}],"updated_at":"2026-11-02T20:32:26.841647Z"}],"ghsa":[{"id":"GHSA-f9xh-499r-w9qx","title":"The Newsletter  WordPress plugin before 8.8.5 does not validate and escape some of its Widget...","description":"The Newsletter  WordPress plugin before 8.8.5 does not validate and escape some of its Widget options before outputting them back in a page/post where the block is embed, 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":"2025-06-09T06:30:22Z","modified":"2025-06-12T18:31:18Z","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":"2026-11-02T15:02:42.831943Z"}],"nvd":[{"id":"CVE-2025-3581","description":"The Newsletter  WordPress plugin before 8.8.5 does not validate and escape some of its Widget options before outputting them back in a page/post where the block is embed, 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":"2025-06-09T06:15:25.067Z","modified":"2026-06-17T09:20:14.353Z","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":"secondary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:11:11.4244Z"}]}}