CVE-2026-15446— EWWW Image Optimizer <= 8.7.3 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'data-script' Lazy Load Attribute in Post Content
Affected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| nosilver4u | EWWW Image Optimizer | ≤ 8.7.3 | affected |
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I. Basic Information for CVE-2026-15446
Vulnerability Information
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Vulnerability Title
EWWW Image Optimizer <= 8.7.3 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'data-script' Lazy Load Attribute in Post Content
Source: CVE Program / CVE List V5
Vulnerability Description
The EWWW Image Optimizer plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'data-script' Lazy Load Attribute in Post Content in all versions up to, and including, 8.7.3 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The exploit is achieved by embedding a crafted img element with class='lazyload' and a data-script attribute pointing to an attacker-controlled URL in post content, which the plugin's bundled lazysizes ls.unveilhooks addon then uses to dynamically create and insert a script element into the DOM at page view time.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/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 |
|---|---|---|---|---|
| nosilver4u | EWWW Image Optimizer | 0 ~ 8.7.3 | - |
II. Public POCs for CVE-2026-15446
| # | POC Description | Source Link | Shenlong Link |
|---|
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Patches & Fixes for CVE-2026-15446 (1)
News Coverage for CVE-2026-15446 (1)
IV. Related Vulnerabilities
V. Comments for CVE-2026-15446
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