{"id":"CVE-2021-3258","aliases":["EUVD-2021-26597","GHSA-rjqp-837c-gqg6"],"status":"published","title":"Question2Answer Q2A Ultimate SEO Version 1.3 is affected by cross-site scripting (XSS), which may...","description":"Question2Answer Q2A Ultimate SEO Version 1.3 is affected by cross-site scripting (XSS), which may lead to arbitrary remote code execution.","severity":{"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","from":"nvd"},"epss":{"day":"2026-11-12","score":0.01715,"percentile":0.77746,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2021-02-05T15:38:18Z","modified":"2026-10-20T10:54:42Z","products":[{"vendor":"qa-themes","product":"q2a_ultimate_seo"}],"references":[{"url":"https://nirmaldahal.com.np/sxss-to-defacement-and-account-takeover/","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","evidence"]},{"url":"https://www.question2answer.org/qa/58520/important-q2a-ultimate-seo-important-update","tags":["x_refsource_MISC","x_transferred","Release Notes","Vendor Advisory","advisory"]},{"url":"https://github.com/q2a-projects/Q2A-Ultimate-SEO/commit/20069f28147c6f2c3acca4e3f6f5154537c5d536","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-3258"},{"url":"https://github.com/advisories/GHSA-rjqp-837c-gqg6"}],"sources":{"cve":[{"id":"CVE-2021-3258","description":"Question2Answer Q2A Ultimate SEO Version 1.3 is affected by cross-site scripting (XSS), which may lead to arbitrary remote code execution.","status":"published","published":"2021-02-05T15:38:18Z","modified":"2024-08-03T16:53:16.838Z","updated_at":"2026-11-02T14:33:04.360272Z"}],"euvd":[{"id":"EUVD-2021-26597","description":"Question2Answer Q2A Ultimate SEO Version 1.3 is affected by cross-site scripting (XSS), which may lead to arbitrary remote code execution.","status":"published","published":"2021-02-05T15:38:18Z","modified":"2024-08-03T16:53:16Z","updated_at":"2026-11-03T03:25:13.531128Z"}],"ghsa":[{"id":"GHSA-rjqp-837c-gqg6","title":"Question2Answer Q2A Ultimate SEO Version 1.3 is affected by cross-site scripting (XSS), which may...","description":"Question2Answer Q2A Ultimate SEO Version 1.3 is affected by cross-site scripting (XSS), which may lead to arbitrary remote code execution.","status":"published","published":"2022-05-24T17:41:13Z","modified":"2023-01-29T05:05:15Z","cwes":["CWE-79"],"updated_at":"2026-11-02T14:45:44.97547Z"}],"nvd":[{"id":"CVE-2021-3258","description":"Question2Answer Q2A Ultimate SEO Version 1.3 is affected by cross-site scripting (XSS), which may lead to arbitrary remote code execution.","status":"published","published":"2021-02-05T16:15:12.757Z","modified":"2026-06-17T04:04:51.777Z","cvss":[{"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"},{"version":"2.0","score":3.5,"vector":"AV:N/AC:M/Au:S/C:N/I:P/A:N","level":"low","assessor":"primary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:06:49.660551Z"}],"osv":[{"id":"CVE-2021-3258","description":"Question2Answer Q2A Ultimate SEO Version 1.3 is affected by cross-site scripting (XSS), which may lead to arbitrary remote code execution.","status":"published","published":"2021-02-05T16:15:12.757Z","modified":"2026-10-20T10:54:42.101741954Z","cvss":[{"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"}],"updated_at":"2026-11-02T15:44:19.793849Z"}]}}