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-level access and above to inject arbitrary web scripts that run in the session of any user who views the affected page, including administrators.
This 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.
This 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.
Project Subscriptions
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Advisories
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Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Thu, 05 Nov 2026 08:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Weaknesses | CWE-79 |
Thu, 05 Nov 2026 06:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | 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-level access and above to inject arbitrary web scripts that run in the session of any user who views the affected page, including administrators. This 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. | |
| Title | EWWW Image Optimizer 8.7.4 - 8.9.0 - Author+ Stored XSS via 'data-script' Lazy Load Attribute | |
| References |
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Projects
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Status: PUBLISHED
Assigner: WPScan
Published:
Updated: 2026-11-05T06:00:27.687Z
Reserved: 2026-09-14T17:15:02.383Z
Link: CVE-2026-91049
No data.
Status : Deferred
Published: 2026-11-05T06:17:10.317
Modified: 2026-11-05T15:06:27.350
Link: CVE-2026-91049
No data.
OpenCVE Enrichment
Updated: 2026-11-05T08:15:17Z
Weaknesses