{"id":"CVE-2021-24670","aliases":["EUVD-2021-11582","GHSA-vhj9-fvc5-h2xq"],"status":"published","title":"CoolClock \u003c 4.3.5 - Contributor+ Stored Cross-Site Scripting","description":"The CoolClock WordPress plugin before 4.3.5 does not escape some shortcode attributes, allowing users with a role as low as Contributor toperform Stored Cross-Site Scripting attacks","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":"2026-11-10","score":0.00624,"percentile":0.50267,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2021-09-27T15:25:38Z","modified":"2026-06-17T03:40:25Z","products":[{"vendor":"status301","product":"coolclock"},{"vendor":"unknown","product":"coolclock – a javascript analog clock"}],"references":[{"url":"https://wpscan.com/vulnerability/a092548f-1ad5-44d3-9901-cdf4ebcee40a","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-24670"},{"url":"https://github.com/advisories/GHSA-vhj9-fvc5-h2xq"}],"sources":{"cve":[{"id":"CVE-2021-24670","title":"CoolClock \u003c 4.3.5 - Contributor+ Stored Cross-Site Scripting","description":"The CoolClock WordPress plugin before 4.3.5 does not escape some shortcode attributes, allowing users with a role as low as Contributor toperform Stored Cross-Site Scripting attacks","status":"published","published":"2021-09-27T15:25:38Z","modified":"2024-08-03T19:42:15.982Z","cwes":["CWE-79"],"updated_at":"2026-11-02T14:33:05.331617Z"}],"euvd":[{"id":"EUVD-2021-11582","description":"The CoolClock WordPress plugin before 4.3.5 does not escape some shortcode attributes, allowing users with a role as low as Contributor toperform Stored Cross-Site Scripting attacks","status":"published","published":"2021-09-27T15:25:38Z","modified":"2024-08-03T19:42:15Z","updated_at":"2026-11-03T03:24:56.31224Z"}],"ghsa":[{"id":"GHSA-vhj9-fvc5-h2xq","title":"The CoolClock WordPress plugin before 4.3.5 does not escape some shortcode attributes, allowing...","description":"The CoolClock WordPress plugin before 4.3.5 does not escape some shortcode attributes, allowing users with a role as low as Contributor toperform Stored Cross-Site Scripting attacks","status":"published","published":"2022-05-24T19:15:48Z","modified":"2023-01-30T05:02:29Z","cwes":["CWE-79"],"updated_at":"2026-11-02T14:46:38.945282Z"}],"nvd":[{"id":"CVE-2021-24670","description":"The CoolClock WordPress plugin before 4.3.5 does not escape some shortcode attributes, allowing users with a role as low as Contributor toperform Stored Cross-Site Scripting attacks","status":"published","published":"2021-09-27T16:15:09.16Z","modified":"2026-06-17T03:40:25.637Z","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":"2026-11-02T14:06:58.933037Z"}]}}