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CVE-2026-77365— Optimole <= 4.2.10 - Unauthenticated Stored Cross-Site Scripting via 'a' (above_fold_images) Parameter

Quick assessment

Affected
optimole Optimole – Optimize Images | Convert WebP & AVIF | CDN & Lazy Load | Image Optimization
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

WordPress 插件 The Optimole – Optimize Images

CVSS 7.2 · High EPSS 0.31% · P23

Possible ATT&CK Techniques 1 AI

T1189 · Drive-by Compromise

Affected Version Matrix 1

VendorProduct Version RangeStatus
optimole Optimole – Optimize Images | Convert WebP & AVIF | CDN & Lazy Load | Image Optimization ≤ 4.2.10 affected
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I. Basic Information for CVE-2026-77365

Vulnerability Information
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Vulnerability Title
Optimole <= 4.2.10 - Unauthenticated Stored Cross-Site Scripting via 'a' (above_fold_images) Parameter
Source: CVE Program / CVE List V5
Vulnerability 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 'a' (above_fold_images) parameter in all versions up to, and including, 4.2.10 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
optimole Optimole – Optimize Images | Convert WebP & AVIF | CDN & Lazy Load | Image Optimization 0 ~ 4.2.10 -

II. Public POCs for CVE-2026-77365

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III. Intelligence Information for CVE-2026-77365

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Patches & Fixes for CVE-2026-77365 (3)

Proof of Concept for CVE-2026-77365 (1)

Other References for CVE-2026-77365 (2)

IV. Related Vulnerabilities

Same product: Optimole – Optimize Images | Convert WebP & AVIF | CDN & Lazy Load | Image Optimization
Same vendor: optimole
Same weakness: CWE-79

V. Comments for CVE-2026-77365

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