{"id":"CVE-2021-20845","aliases":["EUVD-2021-8255","GHSA-c8jw-79fc-g6pw"],"status":"published","title":"Cross-site request forgery (CSRF) vulnerability in Unlimited Sitemap Generator versions prior to...","description":"Cross-site request forgery (CSRF) vulnerability in Unlimited Sitemap Generator versions prior to v8.2 allows a remote attacker to hijack the authentication of an administrator and conduct arbitrary operation via a specially crafted web page.","severity":{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.00523,"percentile":0.44872,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-352"],"published":"2021-11-24T08:25:47Z","modified":"2026-06-17T03:34:31Z","products":[{"vendor":"xml-sitemaps","product":"unlimited sitemap generator"},{"vendor":"xml-sitemaps","product":"unlimited_sitemap_generator"}],"references":[{"url":"https://www.xml-sitemaps.com/standalone-google-sitemap-generator.html","tags":["x_refsource_MISC","x_transferred","Product","Vendor Advisory"]},{"url":"https://www.xml-sitemaps.com/news-20210831.html","tags":["x_refsource_MISC","x_transferred","Release Notes","Vendor Advisory"]},{"url":"https://jvn.jp/en/jp/JVN58407606/index.html","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-20845"},{"url":"https://github.com/advisories/GHSA-c8jw-79fc-g6pw"}],"sources":{"cve":[{"id":"CVE-2021-20845","description":"Cross-site request forgery (CSRF) vulnerability in Unlimited Sitemap Generator versions prior to v8.2 allows a remote attacker to hijack the authentication of an administrator and conduct arbitrary operation via a specially crafted web page.","status":"published","published":"2021-11-24T08:25:47Z","modified":"2024-08-03T17:53:22.974Z","updated_at":"2026-11-02T14:32:55.564736Z"}],"euvd":[{"id":"EUVD-2021-8255","description":"Cross-site request forgery (CSRF) vulnerability in Unlimited Sitemap Generator versions prior to v8.2 allows a remote attacker to hijack the authentication of an administrator and conduct arbitrary operation via a specially crafted web page.","status":"published","published":"2021-11-24T08:25:47Z","modified":"2024-08-03T17:53:22Z","updated_at":"2026-11-03T03:25:07.874589Z"}],"ghsa":[{"id":"GHSA-c8jw-79fc-g6pw","title":"Cross-site request forgery (CSRF) vulnerability in Unlimited Sitemap Generator versions prior to...","description":"Cross-site request forgery (CSRF) vulnerability in Unlimited Sitemap Generator versions prior to v8.2 allows a remote attacker to hijack the authentication of an administrator and conduct arbitrary operation via a specially crafted web page.","status":"published","published":"2021-11-25T00:00:38Z","modified":"2026-03-14T05:09:47Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-352"],"updated_at":"2026-11-02T15:06:37.566427Z"}],"nvd":[{"id":"CVE-2021-20845","description":"Cross-site request forgery (CSRF) vulnerability in Unlimited Sitemap Generator versions prior to v8.2 allows a remote attacker to hijack the authentication of an administrator and conduct arbitrary operation via a specially crafted web page.","status":"published","published":"2021-11-24T16:15:13.33Z","modified":"2026-06-17T03:34:31.947Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":6.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-352"],"updated_at":"2026-11-02T14:07:01.428028Z"}]}}