Answer in brief
CVE-2026-120739 records a High severity (CVSS 7.2) vulnerability in Optimole <= 4.2.18 - Unauthenticated Stored Cross-Site Scripting via Page Profiler srcset Descriptor. The current sources do not mark it as known exploited. The current feed maps optimole/Optimole – Optimize Images | Convert WebP & AVIF | CDN & Lazy Load | Image Optimization (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.2. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps optimole/Optimole – Optimize Images | Convert WebP & AVIF | CDN & Lazy Load | Image Optimization (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| optimole/Optimole – Optimize Images | Convert WebP & AVIF | CDN & Lazy Load | Image Optimizationgeneric | >=0 <=4.2.18 | Not reported |
Published upstream
Nov 7, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Nov 7, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Nov 7, 2026
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.
Quoted source text, attributed separately from HOL analysis.