{"id":"CVE-2024-3239","aliases":["EUVD-2024-31831","GHSA-928w-mwq7-xvqr"],"status":"published","title":"PostX \u003c 4.0.2 - Contributor+ Stored XSS","description":"The Post Grid Gutenberg Blocks and WordPress Blog Plugin  WordPress plugin before 4.0.2 does not validate and escape some of its block options before outputting them back in a page/post where the block 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":"adp","from":"cve"},"epss":{"day":"2026-11-08","score":0.00416,"percentile":0.36219,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2024-05-13T06:00:01Z","modified":"2026-06-17T07:43:35Z","products":[{"vendor":"unknown","product":"post grid gutenberg blocks and wordpress blog plugin"},{"vendor":"wpxpo","product":"postx"}],"references":[{"url":"https://wpscan.com/vulnerability/dfa1421b-41b0-4b25-95ef-0843103e1f5e/","tags":["exploit","vdb-entry","technical-description","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-3239"},{"url":"https://wpscan.com/vulnerability/dfa1421b-41b0-4b25-95ef-0843103e1f5e"},{"url":"https://github.com/advisories/GHSA-928w-mwq7-xvqr"}],"sources":{"cve":[{"id":"CVE-2024-3239","title":"PostX \u003c 4.0.2 - Contributor+ Stored XSS","description":"The Post Grid Gutenberg Blocks and WordPress Blog Plugin  WordPress plugin before 4.0.2 does not validate and escape some of its block options before outputting them back in a page/post where the block is embed, which could allow users with the contributor role and above to perform Stored Cross-Site Scripting attacks","status":"published","published":"2024-05-13T06:00:01.142Z","modified":"2024-11-01T19:15:08.102Z","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":"2026-11-02T14:34:10.961618Z"}],"euvd":[{"id":"EUVD-2024-31831","description":"The Post Grid Gutenberg Blocks and WordPress Blog Plugin  WordPress plugin before 4.0.2 does not validate and escape some of its block options before outputting them back in a page/post where the block is embed, which could allow users with the contributor role and above to perform Stored Cross-Site Scripting attacks","status":"published","published":"2024-05-13T06:00:01Z","modified":"2024-11-01T19:15:08Z","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":"2026-11-03T00:05:12.213578Z"}],"ghsa":[{"id":"GHSA-928w-mwq7-xvqr","title":"The Post Grid Gutenberg Blocks and WordPress Blog Plugin  WordPress plugin before 4.0.2 does not...","description":"The Post Grid Gutenberg Blocks and WordPress Blog Plugin  WordPress plugin before 4.0.2 does not validate and escape some of its block options before outputting them back in a page/post where the block is embed, which could allow users with the contributor role and above to perform Stored Cross-Site Scripting attacks","status":"published","published":"2024-05-14T18:30:52Z","modified":"2025-05-14T18:30:39Z","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"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:02:17.741266Z"}],"nvd":[{"id":"CVE-2024-3239","description":"The Post Grid Gutenberg Blocks and WordPress Blog Plugin  WordPress plugin before 4.0.2 does not validate and escape some of its block options before outputting them back in a page/post where the block is embed, which could allow users with the contributor role and above to perform Stored Cross-Site Scripting attacks","status":"published","published":"2024-05-14T15:40:31.957Z","modified":"2026-06-17T07:43:35.82Z","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":"secondary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:09:58.124007Z"}]}}