{"id":"CVE-2021-24423","aliases":["EUVD-2021-11335","GHSA-4v9q-rjxq-3952"],"status":"published","title":"UpdraftPlus \u003c 1.16.59 - Admin+ Stored Cross-Site Scripting","description":"The UpdraftPlus WordPress Backup Plugin WordPress plugin before 1.6.59 does not sanitise its updraft_service settings, allowing high privilege users to set malicious JavaScript payload in it and leading to a Stored Cross-Site Scripting issue","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":"2026-11-11","score":0.00614,"percentile":0.49871,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2022-01-24T08:00:45Z","modified":"2026-06-17T03:40:00Z","products":[{"vendor":"unknown","product":"updraftplus wordpress backup plugin"},{"vendor":"updraftplus","product":"updraftplus"}],"references":[{"url":"https://wpscan.com/vulnerability/541974d6-2df8-4497-9aee-afd3b9024102","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://m0ze.ru/vulnerability/%5B2021-05-09%5D-%5BWordPress%5D-%5BCWE-79%5D-UpdraftPlus-WordPress-Plugin-v1.16.56.txt","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-24423"},{"url":"https://m0ze.ru/vulnerability/[2021-05-09]-[WordPress]-[CWE-79]-UpdraftPlus-WordPress-Plugin-v1.16.56.txt"},{"url":"https://github.com/advisories/GHSA-4v9q-rjxq-3952"}],"sources":{"cve":[{"id":"CVE-2021-24423","title":"UpdraftPlus \u003c 1.16.59 - Admin+ Stored Cross-Site Scripting","description":"The UpdraftPlus WordPress Backup Plugin WordPress plugin before 1.6.59 does not sanitise its updraft_service settings, allowing high privilege users to set malicious JavaScript payload in it and leading to a Stored Cross-Site Scripting issue","status":"published","published":"2022-01-24T08:00:45Z","modified":"2024-08-03T19:28:23.809Z","cwes":["CWE-79"],"updated_at":"2026-11-02T14:33:05.000797Z"}],"euvd":[{"id":"EUVD-2021-11335","description":"The UpdraftPlus WordPress Backup Plugin WordPress plugin before 1.6.59 does not sanitise its updraft_service settings, allowing high privilege users to set malicious JavaScript payload in it and leading to a Stored Cross-Site Scripting issue","status":"published","published":"2022-01-24T08:00:45Z","modified":"2024-08-03T19:28:23Z","updated_at":"2026-11-03T03:24:57.947294Z"}],"ghsa":[{"id":"GHSA-4v9q-rjxq-3952","title":"The UpdraftPlus WordPress Backup Plugin WordPress plugin before 1.6.59 does not sanitise its...","description":"The UpdraftPlus WordPress Backup Plugin WordPress plugin before 1.6.59 does not sanitise its updraft_service settings, allowing high privilege users to set malicious JavaScript payload in it and leading to a Stored Cross-Site Scripting issue","status":"published","published":"2022-01-25T00:01:54Z","modified":"2023-02-03T05:05:19Z","cwes":["CWE-79"],"updated_at":"2026-11-02T14:53:43.432623Z"}],"nvd":[{"id":"CVE-2021-24423","description":"The UpdraftPlus WordPress Backup Plugin WordPress plugin before 1.6.59 does not sanitise its updraft_service settings, allowing high privilege users to set malicious JavaScript payload in it and leading to a Stored Cross-Site Scripting issue","status":"published","published":"2022-01-24T08:15:08.407Z","modified":"2026-06-17T03:40:00.043Z","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":"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":"2026-11-02T14:07:03.821385Z"}]}}