The Optimole – Optimize Images | Convert WebP & AVIF | CDN & Lazy Load | Image Optimization plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'comment' parameter in all versions up to, and including, 4.2.18 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Exploitation requires the comment to be approved by an administrator and for the affected post to contain at least one iframe or video element (e.g., a core Video block), which is sufficient under default plugin settings where video lazy loading is enabled.
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Fixes
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References
History
Sat, 07 Nov 2026 03:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | The Optimole – Optimize Images | Convert WebP & AVIF | CDN & Lazy Load | Image Optimization plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'comment' parameter in all versions up to, and including, 4.2.18 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Exploitation requires the comment to be approved by an administrator and for the affected post to contain at least one iframe or video element (e.g., a core Video block), which is sufficient under default plugin settings where video lazy loading is enabled. | |
| Title | Optimole <= 4.2.18 - Unauthenticated Stored Cross-Site Scripting via Comment Content | |
| Weaknesses | CWE-79 | |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: Wordfence
Published:
Updated: 2026-11-07T03:28:06.596Z
Reserved: 2026-11-02T19:06:11.935Z
Link: CVE-2026-120677
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Status : Deferred
Published: 2026-11-07T04:17:13.537
Modified: 2026-11-07T04:17:13.660
Link: CVE-2026-120677
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OpenCVE Enrichment
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Weaknesses