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CVE-2026-120739

Optimole <= 4.2.18 - Unauthenticated Stored Cross-Site Scripting via Page Profiler srcset Descriptor

The Optimole – Optimize Images | Convert WebP & AVIF | CDN & Lazy Load | Image Optimization plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 's (missing_srcsets[*][*].s)' 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. The HMAC signature required to pass the REST endpoint's authorization check is published in plaintext to unauthenticated visitors inside the inline optimoleDataOptimizer JavaScript object on any page with an incomplete profile, making the effective authentication barrier nonexistent.

CVSS 3.1 · 7.2 High EPSS < 1% KEV · Not listed
Vendors
Optimole Wordpress-extensions
Products
Optimole Optimole
CVE-2026-120677

Optimole <= 4.2.18 - Unauthenticated Stored Cross-Site Scripting via Comment Content

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.

CVSS 3.1 · 7.2 High EPSS < 1% KEV · Not listed
Vendors
Optimole Wordpress-extensions
Products
Optimole Optimole
CVE-2026-119070

Optimole <= 4.2.17 - Unauthenticated Stored Cross-Site Scripting via Comment Content via Backslash-Escaped Unicode in URL Replacer

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, 4.2.17 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. The exploit requires the plugin to be in its normal connected state (cdn_key and cdn_secret configured) with the image replacer enabled, which is the default post-setup configuration; the stored payload bypasses all WordPress comment sanitization filters because it contains no HTML metacharacters at storage time — the characters are produced only by Optimole's own decoder at render time.

CVSS 3.1 · 7.2 High EPSS < 1% KEV · Not listed
Vendors
Optimole Wordpress-extensions
Products
Optimole – Optimize Images | Convert Webp & Avif | Cdn & Lazy Load | Image Optimization Optimole
CVE-2026-96530

Optimole 4.0.0 - 4.2.14 - Subscriber+ Sensitive Data Disclosure via Dashboard Widget

The Optimole WordPress plugin before 4.2.15 does not perform a capability check before exposing its stored image-optimization account data in a dashboard widget, allowing any authenticated user, including Subscribers, to read the site's third-party service credentials.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Vendors
Wordpress-extensions
Products
Optimole
CVE-2026-102375

WordPress Optimole plugin <= 4.2.14 - Broken Access Control vulnerability

Missing Authorization vulnerability in Optimole Optimole optimole-wp allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Optimole: from n/a through 4.2.14.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Vendors
Optimole Wordpress-extensions
Products
Optimole Optimole
CVE-2026-96531

Optimole 4.0.0 - 4.2.12 - Author+ Stored XSS via Video Player Block

The Optimole WordPress plugin before 4.2.13 does not escape unrecognized attributes of its video-player block before rendering them onto the block's wrapper element, allowing users with the Author role and above to store an event-handler attribute that executes scripts in the browser of any user, such as an administrator, who views the post.

CVSS 3.1 · 6.8 Medium EPSS < 1% KEV · Not listed
Vendors
Wordpress-extensions
Products
Optimole