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CVE-2026-118634— Events Made Easy <= 3.3.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'width' Shortcode Attribute

Quick assessment

Affected
liedekef Events Made Easy
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 的"Events Made Easy"插件在所有 3.3.1 及更早版本中，因输入过滤和输出转义不足，存在存储型跨站脚本（Stored XSS）漏洞。该漏洞通过"width"参数触发，使得拥有贡献者（Contributor）及以上权限的已认证攻击者，能够在页面中注入任意 Web 脚本；一旦用户访问被注入的页面，这些脚本便会执行。

CVSS 6.4 · Medium
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I. Basic Information for CVE-2026-118634

Vulnerability Information
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Vulnerability Title
Events Made Easy <= 3.3.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'width' Shortcode Attribute
Source: CVE Program / CVE List V5
Vulnerability Description
The Events Made Easy plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'width' parameter in all versions up to, and including, 3.3.1 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.
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
liedekef Events Made Easy 0 ~ 3.3.1 -

II. Public POCs for CVE-2026-118634

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III. Intelligence Information for CVE-2026-118634

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Other References for CVE-2026-118634 (6)

IV. Related Vulnerabilities

Same product: Events Made Easy
Same vendor: liedekef
Same weakness: CWE-79