{"id":"CVE-2023-0874","aliases":["EUVD-2023-12865","GHSA-6rcr-6w3p-5xj6"],"status":"published","title":"Klaviyo \u003c= 3.0.10 - Admin+ Stored XSS","description":"The Klaviyo WordPress plugin before 3.0.10 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":"2026-11-08","score":0.00442,"percentile":0.38716,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2023-04-10T13:18:03Z","modified":"2026-06-17T05:26:31Z","products":[{"vendor":"klaviyo","product":"klavio"},{"vendor":"unknown","product":"klaviyo"}],"references":[{"url":"https://wpscan.com/vulnerability/495e39db-793d-454b-9ef1-dd91cae2c49b","tags":["exploit","vdb-entry","technical-description","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-0874"},{"url":"https://github.com/advisories/GHSA-6rcr-6w3p-5xj6"}],"sources":{"cve":[{"id":"CVE-2023-0874","title":"Klaviyo \u003c= 3.0.10 - Admin+ Stored XSS","description":"The Klaviyo WordPress plugin before 3.0.10 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":"2023-04-10T13:18:03.854Z","modified":"2025-02-11T21:15:48.838Z","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":"2026-11-02T14:35:35.256261Z"}],"euvd":[{"id":"EUVD-2023-12865","description":"The Klaviyo WordPress plugin before 3.0.10 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":"2023-04-10T13:18:03Z","modified":"2025-02-11T21:15:48Z","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":"2026-11-03T00:03:58.784175Z"}],"ghsa":[{"id":"GHSA-6rcr-6w3p-5xj6","title":"The Klaviyo WordPress plugin before 3.0.10 does not sanitize and escape some of its settings,...","description":"The Klaviyo WordPress plugin before 3.0.10 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":"2023-04-10T15:30:26Z","modified":"2023-04-21T05:08:46Z","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":"2026-11-02T14:54:32.800891Z"}],"nvd":[{"id":"CVE-2023-0874","description":"The Klaviyo WordPress plugin before 3.0.10 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":"2023-04-10T14:15:08.553Z","modified":"2026-06-17T05:26:31.96Z","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"},{"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"}],"updated_at":"2026-11-02T14:07:53.719171Z"}]}}