{"id":"CVE-2023-0147","aliases":["EUVD-2023-12237","GHSA-c3mv-p44m-x992"],"status":"published","title":"Flexible Captcha \u003c= 4.1 - Contributor+ Stored XSS","description":"The Flexible Captcha WordPress plugin through 4.1 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":"2026-11-12","score":0.00613,"percentile":0.4987,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2023-02-06T19:59:41Z","modified":"2026-06-17T05:24:53Z","products":[{"vendor":"flexible_captcha_project","product":"flexible_captcha"},{"vendor":"unknown","product":"flexible captcha"}],"references":[{"url":"https://wpscan.com/vulnerability/af9cbb4a-42fc-43c5-88f3-349b417f1a6a","tags":["exploit","vdb-entry","technical-description","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-0147"},{"url":"https://github.com/advisories/GHSA-c3mv-p44m-x992"}],"sources":{"cve":[{"id":"CVE-2023-0147","title":"Flexible Captcha \u003c= 4.1 - Contributor+ Stored XSS","description":"The Flexible Captcha WordPress plugin through 4.1 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":"2023-02-06T19:59:41.302Z","modified":"2025-03-25T19:57:39.69Z","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":"adp"}],"updated_at":"2026-11-02T14:35:35.580545Z"}],"euvd":[{"id":"EUVD-2023-12237","description":"The Flexible Captcha WordPress plugin through 4.1 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":"2023-02-06T19:59:41Z","modified":"2025-03-25T19:57:39Z","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"}],"updated_at":"2026-11-02T20:52:52.192094Z"}],"ghsa":[{"id":"GHSA-c3mv-p44m-x992","title":"The Flexible Captcha WordPress plugin through 4.1 does not validate and escape some of its...","description":"The Flexible Captcha WordPress plugin through 4.1 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":"2023-02-06T21:30:32Z","modified":"2023-02-22T05:05:46Z","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":"2026-11-02T14:54:12.44657Z"}],"nvd":[{"id":"CVE-2023-0147","description":"The Flexible Captcha WordPress plugin through 4.1 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":"2023-02-06T20:15:13.31Z","modified":"2026-06-17T05:24:53.593Z","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":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":"secondary"}],"updated_at":"2026-11-02T14:07:46.064662Z"}]}}