{"id":"CVE-2026-91049","title":"EWWW Image Optimizer 8.7.4 - 8.9.0 - Author+ Stored XSS via 'data-script' Lazy Load Attribute","summary":"The EWWW Image Optimizer WordPress plugin before 8.9.1 does not properly sanitize and restrict a value in post content before using it to dynamically load and execute a script in the page, allowing authenticated attackers with author-lev…","severity":"medium","cvss":6.4,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H","cvssSource":"adp","cwe":["CWE-79"],"product":"EWWW Image Optimizer","affected":["ewww_image_optimizer >= 8.7.4 < 8.9.1"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-11-06T11:49:52.695338Z"},"published":"2026-11-05","updated":"2026-11-06","sourceUpdated":"2026-11-06T12:02:36.318Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-91049","references":[{"url":"https://wpscan.com/vulnerability/cdaf3779-3e8a-4997-9868-707bcc06f9a7/"}],"tags":["cve.org"],"epss":0.00208,"epssPercentile":0.10929,"ingestedAt":"2026-11-05T21:36:00.785Z","slug":"CVE-2026-91049","body":"## Overview\n\nThe EWWW Image Optimizer WordPress plugin before 8.9.1 does not properly sanitize and restrict a value in post content before using it to dynamically load and execute a script in the page, allowing authenticated attackers with author-level access and above to inject arbitrary web scripts that run in the session of any user who views the affected page, including administrators.\n\nThis is an incomplete fix of CVE-2026-15446: the origin and path restrictions added from 8.7.4 onward were each bypassable, so versions 8.7.4 through 8.9.0 remain affected.\n\n## Affected\n\n- `ewww_image_optimizer >= 8.7.4 < 8.9.1`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":35,"depthScoreParts":{"impact":35.2,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":235102,"id":"CVE-2026-91049","ts":1793969519912,"field":"cvss","old":null,"new":"6.4"},{"seq":235101,"id":"CVE-2026-91049","ts":1793969519912,"field":"severity","old":"none","new":"medium"}]}