{"id":"CVE-2024-8480","aliases":["EUVD-2024-49211","GHSA-cjpq-64wj-gmhm"],"status":"published","title":"Image Optimizer, Resizer and CDN – Sirv \u003c= 7.2.7 - Missing Authorization to Authenticated (Contributor+) Arbitrary File Upload","description":"The Image Optimizer, Resizer and CDN – Sirv plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the 'sirv_save_prevented_sizes' function in all versions up to, and including, 7.2.7. This makes it possible for authenticated attackers, with Contributor-level access and above, to exploit the 'sirv_upload_file_by_chunks_callback' function, which lacks proper file type validation, allowing attackers to upload arbitrary files on the affected site's server which may make remote code execution possible.","severity":{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00852,"percentile":0.58513,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-862"],"published":"2024-09-06T03:30:40Z","modified":"2026-06-17T08:22:41Z","products":[{"vendor":"sirv","product":"image optimizer, resizer and cdn – sirv"},{"vendor":"sirv","product":"sirv"}],"references":[{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/1e3e628f-b5e7-40fd-9d34-4a3b23e1e0e7?source=cve","tags":["Third Party Advisory"]},{"url":"https://plugins.trac.wordpress.org/browser/sirv/trunk/sirv.php?rev=3103410#L4647","tags":["Issue Tracking"]},{"url":"https://plugins.trac.wordpress.org/browser/sirv/tags/7.2.7/sirv.php#L6331","tags":["Issue Tracking"]},{"url":"https://plugins.trac.wordpress.org/changeset/3115018/","tags":["Patch"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-8480"},{"url":"https://plugins.trac.wordpress.org/changeset/3115018"},{"url":"https://github.com/advisories/GHSA-cjpq-64wj-gmhm"}],"sources":{"cve":[{"id":"CVE-2024-8480","title":"Image Optimizer, Resizer and CDN – Sirv \u003c= 7.2.7 - Missing Authorization to Authenticated (Contributor+) Arbitrary File Upload","description":"The Image Optimizer, Resizer and CDN – Sirv plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the 'sirv_save_prevented_sizes' function in all versions up to, and including, 7.2.7. This makes it possible for authenticated attackers, with Contributor-level access and above, to exploit the 'sirv_upload_file_by_chunks_callback' function, which lacks proper file type validation, allowing attackers to upload arbitrary files on the affected site's server which may make remote code execution possible.","status":"published","published":"2024-09-06T03:30:40.246Z","modified":"2026-04-08T16:40:46.096Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-862"],"updated_at":"2026-11-02T14:34:09.216761Z"}],"euvd":[{"id":"EUVD-2024-49211","description":"The Image Optimizer, Resizer and CDN – Sirv plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the 'sirv_save_prevented_sizes' function in all versions up to, and including, 7.2.7. This makes it possible for authenticated attackers, with Contributor-level access and above, to exploit the 'sirv_upload_file_by_chunks_callback' function, which lacks proper file type validation, allowing attackers to upload arbitrary files on the affected site's server which may make remote code execution possible.","status":"published","published":"2024-09-06T03:30:40Z","modified":"2026-04-08T16:40:46Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T19:25:06.888768Z"}],"ghsa":[{"id":"GHSA-cjpq-64wj-gmhm","title":"The Image Optimizer, Resizer and CDN – Sirv plugin for WordPress is vulnerable to unauthorized...","description":"The Image Optimizer, Resizer and CDN – Sirv plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the 'sirv_save_prevented_sizes' function in all versions up to, and including, 7.2.7. This makes it possible for authenticated attackers, with Contributor-level access and above, to exploit the 'sirv_upload_file_by_chunks_callback' function, which lacks proper file type validation, allowing attackers to upload arbitrary files on the affected site's server which may make remote code execution possible.","status":"published","published":"2024-09-06T06:31:41Z","modified":"2024-09-06T06:31:47Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-862"],"updated_at":"2026-11-02T14:58:11.330333Z"}],"nvd":[{"id":"CVE-2024-8480","description":"The Image Optimizer, Resizer and CDN – Sirv plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the 'sirv_save_prevented_sizes' function in all versions up to, and including, 7.2.7. This makes it possible for authenticated attackers, with Contributor-level access and above, to exploit the 'sirv_upload_file_by_chunks_callback' function, which lacks proper file type validation, allowing attackers to upload arbitrary files on the affected site's server which may make remote code execution possible.","status":"published","published":"2024-09-06T04:15:05.847Z","modified":"2026-06-17T08:22:41.34Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"},{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"}],"cwes":["CWE-862"],"updated_at":"2026-11-02T14:10:24.514378Z"}]}}