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CVE-2026-84773— WordPress EWWW Image Optimizer plugin <= 8.7.6 - Cross Site Scripting (XSS) vulnerability

Quick assessment

Affected
作者: Shane Bishop EWWW Image 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.

WordPress EWWW Image Optimizer是WordPress基金会的一款图像优化插件。 WordPress EWWW Image Optimizer 8.7.6及之前版本存在跨站脚本漏洞，该漏洞源于对用户输入验证不足，可能导致未经身份验证的攻击者发起跨站脚本攻击。

CVSS 7.2 · High EPSS 0.17% · P6

Possible ATT&CK Techniques 1 AI

T1083 · File and Directory Discovery

Affected Version Matrix 1

VendorProduct Version RangeStatus
作者: Shane Bishop EWWW Image Optimizer n/a≤ 8.7.6 affected
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I. Basic Information for CVE-2026-84773

Vulnerability Information
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Vulnerability Title
WordPress EWWW Image Optimizer plugin <= 8.7.6 - Cross Site Scripting (XSS) vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Unauthenticated Cross Site Scripting (XSS) in EWWW Image Optimizer <= 8.7.6 versions.
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
Vulnerability Title
WordPress EWWW Image Optimizer 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress EWWW Image Optimizer是WordPress基金会的一款图像优化插件。 WordPress EWWW Image Optimizer 8.7.6及之前版本存在跨站脚本漏洞，该漏洞源于对用户输入验证不足，可能导致未经身份验证的攻击者发起跨站脚本攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
作者: Shane Bishop EWWW Image Optimizer n/a ~ 8.7.6 -

II. Public POCs for CVE-2026-84773

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III. Intelligence Information for CVE-2026-84773

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News Coverage for CVE-2026-84773 (1)

IV. Related Vulnerabilities

Same product: EWWW Image Optimizer
Same weakness: CWE-79

V. Comments for CVE-2026-84773

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