{"id":"CVE-2026-91072","aliases":["EUVD-2026-89619","GHSA-6w6r-chf5-m436"],"status":"published","title":"EWWW Image Optimizer \u003c 8.8.0 - Admin+ WebP File Rename and Deletion via Unrestricted Path in WebP Migration Handler","description":"The EWWW Image Optimizer WordPress plugin before 8.8.0 does not confine a WebP-derivative file migration routine to the current site's own uploads directory, letting an attacker with Administrator-level access rename or delete existing WebP-derivative image files outside that scope, including, on a multisite network, files belonging to a different site they have no access to.","severity":{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:N/I:L/A:L","level":"medium","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-11","score":0.00168,"percentile":0.061,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-73"],"published":"2026-09-30T06:00:24Z","modified":"2026-09-30T16:28:31Z","products":[{"vendor":"exactly www","product":"ewww image optimizer"},{"vendor":"unknown","product":"ewww image optimizer"}],"references":[{"url":"https://wpscan.com/vulnerability/c77770c5-d1af-47f6-9aee-a50d4a919732/","tags":["exploit","vdb-entry","technical-description"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-91072"},{"url":"https://wpscan.com/vulnerability/c77770c5-d1af-47f6-9aee-a50d4a919732"},{"url":"https://github.com/advisories/GHSA-6w6r-chf5-m436"}],"sources":{"cve":[{"id":"CVE-2026-91072","title":"EWWW Image Optimizer \u003c 8.8.0 - Admin+ WebP File Rename and Deletion via Unrestricted Path in WebP Migration Handler","description":"The EWWW Image Optimizer WordPress plugin before 8.8.0 does not confine a WebP-derivative file migration routine to the current site's own uploads directory, letting an attacker with Administrator-level access rename or delete existing WebP-derivative image files outside that scope, including, on a multisite network, files belonging to a different site they have no access to.","status":"published","published":"2026-09-30T06:00:24.712Z","modified":"2026-09-30T13:37:22.035Z","cvss":[{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:N/I:L/A:L","level":"medium","assessor":"adp"}],"cwes":["CWE-73"],"updated_at":"2026-11-02T14:19:52.773089Z"}],"euvd":[{"id":"EUVD-2026-89619","description":"The EWWW Image Optimizer WordPress plugin before 8.8.0 does not confine a WebP-derivative file migration routine to the current site's own uploads directory, letting an attacker with Administrator-level access rename or delete existing WebP-derivative image files outside that scope, including, on a multisite network, files belonging to a different site they have no access to.","status":"published","published":"2026-09-30T06:00:24Z","modified":"2026-09-30T13:37:22Z","cvss":[{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:N/I:L/A:L","level":"medium"}],"updated_at":"2026-11-02T17:27:49.833828Z"}],"ghsa":[{"id":"GHSA-6w6r-chf5-m436","title":"The EWWW Image Optimizer WordPress plugin before 8.8.0 does not confine a WebP-derivative file...","description":"The EWWW Image Optimizer WordPress plugin before 8.8.0 does not confine a WebP-derivative file migration routine to the current site's own uploads directory, letting an attacker with Administrator-level access rename or delete existing WebP-derivative image files outside that scope, including, on a multisite network, files belonging to a different site they have no access to.","status":"published","published":"2026-09-30T06:31:36Z","modified":"2026-09-30T15:32:26Z","cvss":[{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:N/I:L/A:L","level":"medium"}],"cwes":["CWE-73"],"updated_at":"2026-11-02T15:12:36.997507Z"}],"nvd":[{"id":"CVE-2026-91072","description":"The EWWW Image Optimizer WordPress plugin before 8.8.0 does not confine a WebP-derivative file migration routine to the current site's own uploads directory, letting an attacker with Administrator-level access rename or delete existing WebP-derivative image files outside that scope, including, on a multisite network, files belonging to a different site they have no access to.","status":"published","published":"2026-09-30T06:17:09.413Z","modified":"2026-09-30T16:28:31.51Z","cvss":[{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:N/I:L/A:L","level":"medium","assessor":"secondary"}],"cwes":["CWE-73"],"updated_at":"2026-11-02T14:12:52.759595Z"}]}}