{"id":"CVE-2023-0491","aliases":["EUVD-2023-12540","GHSA-7px2-jqwm-jhmm"],"status":"published","title":"Schedulicity - Easy Online Scheduling \u003c= 2.21 - Contributor+ Stored XSS","description":"The Schedulicity WordPress plugin through 2.21 does not validate and escape some of its shortcode attributes before outputting them back in a page/post where the shortcode is embed, which could allow users with the contributor role and above to perform 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":"2026-11-11","score":0.0056,"percentile":0.47037,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2023-03-27T15:37:32Z","modified":"2026-06-17T05:25:40Z","products":[{"vendor":"schedulicity","product":"schedulicity"},{"vendor":"unknown","product":"schedulicity"}],"references":[{"url":"https://wpscan.com/vulnerability/b1a7e8fc-ffcf-493b-9f2d-ffa5d2348b60","tags":["exploit","vdb-entry","technical-description","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-0491"},{"url":"https://github.com/advisories/GHSA-7px2-jqwm-jhmm"}],"sources":{"cve":[{"id":"CVE-2023-0491","title":"Schedulicity - Easy Online Scheduling \u003c= 2.21 - Contributor+ Stored XSS","description":"The Schedulicity WordPress plugin through 2.21 does not validate and escape some of its shortcode attributes before outputting them back in a page/post where the shortcode is embed, which could allow users with the contributor role and above to perform Stored Cross-Site Scripting attacks.","status":"published","published":"2023-03-27T15:37:32.778Z","modified":"2025-02-19T19:35:13.181Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N","level":"medium","assessor":"adp"}],"updated_at":"2026-11-02T14:35:35.256261Z"}],"euvd":[{"id":"EUVD-2023-12540","description":"The Schedulicity WordPress plugin through 2.21 does not validate and escape some of its shortcode attributes before outputting them back in a page/post where the shortcode is embed, which could allow users with the contributor role and above to perform Stored Cross-Site Scripting attacks.","status":"published","published":"2023-03-27T15:37:32Z","modified":"2025-02-19T19:35:13Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N","level":"medium"}],"updated_at":"2026-11-02T20:53:26.792701Z"}],"ghsa":[{"id":"GHSA-7px2-jqwm-jhmm","title":"The Schedulicity WordPress plugin through 2.21 does not validate and escape some of its shortcode...","description":"The Schedulicity WordPress plugin through 2.21 does not validate and escape some of its shortcode attributes before outputting them back in a page/post where the shortcode is embed, which could allow users with the contributor role and above to perform Stored Cross-Site Scripting attacks.","status":"published","published":"2023-03-27T18:30:25Z","modified":"2023-04-08T05:00:54Z","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":"2026-11-02T14:54:27.812339Z"}],"nvd":[{"id":"CVE-2023-0491","description":"The Schedulicity WordPress plugin through 2.21 does not validate and escape some of its shortcode attributes before outputting them back in a page/post where the shortcode is embed, which could allow users with the contributor role and above to perform Stored Cross-Site Scripting attacks.","status":"published","published":"2023-03-27T16:15:08.42Z","modified":"2026-06-17T05:25:40.39Z","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":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N","level":"medium","assessor":"secondary"}],"updated_at":"2026-11-02T14:07:50.908252Z"}]}}