{"id":"CVE-2021-24897","aliases":["EUVD-2021-11809","GHSA-8hmm-58xr-mxjc"],"status":"published","title":"Add Subtitle \u003c= 1.1.0 - Contributor+ Stored Cross-Site Scripting","description":"The Add Subtitle WordPress plugin through 1.1.0 does not sanitise or escape the sub-title field (available only with classic editor) when output in the page, which could allow users with a role as low as contributor to perform 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":0.00604,"percentile":0.49244,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2022-03-14T14:40:58Z","modified":"2026-06-17T03:41:05Z","products":[{"vendor":"unknown","product":"add subtitle"},{"vendor":"viitorcloud","product":"add_subtitle"}],"references":[{"url":"https://wpscan.com/vulnerability/a0dd1da8-f8d2-453d-a2f2-711a49fb6466","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-24897"},{"url":"https://github.com/advisories/GHSA-8hmm-58xr-mxjc"}],"sources":{"cve":[{"id":"CVE-2021-24897","title":"Add Subtitle \u003c= 1.1.0 - Contributor+ Stored Cross-Site Scripting","description":"The Add Subtitle WordPress plugin through 1.1.0 does not sanitise or escape the sub-title field (available only with classic editor) when output in the page, which could allow users with a role as low as contributor to perform Cross-Site Scripting attacks","status":"published","published":"2022-03-14T14:40:58Z","modified":"2024-08-03T19:49:13.999Z","cwes":["CWE-79"],"updated_at":"2026-11-02T14:33:05.000797Z"}],"euvd":[{"id":"EUVD-2021-11809","description":"The Add Subtitle WordPress plugin through 1.1.0 does not sanitise or escape the sub-title field (available only with classic editor) when output in the page, which could allow users with a role as low as contributor to perform Cross-Site Scripting attacks","status":"published","published":"2022-03-14T14:40:58Z","modified":"2024-08-03T19:49:13Z","updated_at":"2026-11-03T03:24:55.415131Z"}],"ghsa":[{"id":"GHSA-8hmm-58xr-mxjc","title":"The Add Subtitle WordPress plugin through 1.1.0 does not sanitise or escape the sub-title field ...","description":"The Add Subtitle WordPress plugin through 1.1.0 does not sanitise or escape the sub-title field (available only with classic editor) when output in the page, which could allow users with a role as low as contributor to perform Cross-Site Scripting attacks","status":"published","published":"2022-03-15T00:01:00Z","modified":"2023-01-27T05:00:42Z","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"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:41:44.25061Z"}],"nvd":[{"id":"CVE-2021-24897","description":"The Add Subtitle WordPress plugin through 1.1.0 does not sanitise or escape the sub-title field (available only with classic editor) when output in the page, which could allow users with a role as low as contributor to perform Cross-Site Scripting attacks","status":"published","published":"2022-03-14T15:15:08.507Z","modified":"2026-06-17T03:41:05.807Z","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":"2026-11-02T14:07:05.198719Z"}]}}