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CVE-2026-111737— Speed Optimizer < 7.8.5 - Admin+ Stored XSS via DNS Prefetch and Font Preload URL Lists

Quick assessment

Affected
Unknown Speed Optimizer
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.

Speed Optimizer WordPress 插件在 7.8.5 版本之前，未对其部分设置项进行清理或转义，便将其输出到前端页面的 区域。这可能导致高权限用户（例如管理员）执行存储型跨站脚本（Stored XSS）攻击，即使系统已禁用 能力（例如在多站点配置中）也无法阻止此类攻击。

AI Predicted 6.5 Difficulty: Easy EPSS 0.15% · P4

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
Unknown Speed Optimizer < 7.8.5 affected
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I. Basic Information for CVE-2026-111737

Vulnerability Information
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Vulnerability Title
Speed Optimizer < 7.8.5 - Admin+ Stored XSS via DNS Prefetch and Font Preload URL Lists
Source: CVE Program / CVE List V5
Vulnerability Description
The Speed Optimizer WordPress plugin before 7.8.5 does not sanitise or escape some of its settings before outputting them in the head of front-end pages, which could allow high-privilege users such as admins to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in a multisite setup).
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Unknown Speed Optimizer 0 ~ 7.8.5 -

II. Public POCs for CVE-2026-111737

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III. Intelligence Information for CVE-2026-111737

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Same Patch Batch · Unknown · 2026-10-23 · 22 CVEs total

CVE-2026-94263 4.8 MEDIUM Advanced Custom Fields: Extended 0.9.2.4 - 0.9.2.7 - Unauthenticated Arbitrary Shortcode E
CVE-2026-111965 4.3 MEDIUM Profile Builder 4.0.0 - 4.0.4 - Subscriber+ Comment reCAPTCHA Bypass
CVE-2026-110537 Essential Addons for Elementor < 6.8.7 - Admin+ Cross-Site User Approval State Change via
CVE-2026-110510 Essential Addons for Elementor < 6.8.7 - Author+ Content Injection via Pricing Table and P
CVE-2026-109935 Otter Blocks < 3.2.8 - Unauthenticated Restricted Block Content Disclosure via REST API
CVE-2026-109933 Otter Blocks < 3.2.8 - Contributor+ Stored XSS via Block Style Attributes
CVE-2026-109934 Otter Blocks 3.1.1 - 3.2.7 - Unauthenticated Non-Public Content Disclosure via REST API
CVE-2026-109936 Otter Blocks < 3.2.8 - Unauthenticated Stored XSS via Dynamic Content Render Filter
CVE-2026-111738 Speed Optimizer < 7.8.5 - Admin+ Network Option Update via enable-option/disable-option
CVE-2026-111966 Profile Builder < 4.0.5 - Contributor+ Stored XSS via redirect_url Shortcode Attribute
CVE-2026-111982 Profile Builder < 4.0.5 - Multisite Subsite Admin+ Network Super Admin Account Takeover vi
CVE-2026-113472 Depicter 4.0.5 - 4.8.1 - Editor+ Arbitrary File Upload via Media Upload
CVE-2026-113501 LiteSpeed Cache < 7.9.2 - Subscriber+ Pinned Administrative Notice Dismissal
CVE-2026-113500 LiteSpeed Cache < 7.9.2 - Unauthenticated Stored XSS via Font Display Optimization
CVE-2026-113499 LiteSpeed Cache < 7.9.2 - Unauthenticated Stored XSS via CDN Inline CSS Rewriting
CVE-2026-112230 Popup Builder < 4.4.6 - Unauthenticated Popup Trashing via post_type Parameter
CVE-2026-112219 Download Monitor < 5.3.5 - Multisite Subsite Admin+ Incorrect Authorization via Approved D
CVE-2026-94267 Advanced Custom Fields: Extended < 0.9.2.8 - Unauthenticated RCE via Front-End Post Update
CVE-2026-94264 Advanced Custom Fields: Extended 0.8.9.4 - 0.9.2.7 - Contributor+ XSS via Form Shortcode A
CVE-2026-94262 Advanced Custom Fields: Extended 0.9.2.7 - Unauthenticated Non-Administrator Account Takeo

Showing top 20 of 22 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Speed Optimizer
Same vendor: Unknown

V. Comments for CVE-2026-111737

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