CVE-2026-2387— Event Organiser <= 3.12.9 - Authenticated (Contributor+) Stored Cross-Site Scripting via eo_events Shortcode
Affected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| stephenharris | Event Organiser | ≤ 3.12.9 | affected |
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I. Basic Information for CVE-2026-2387
Vulnerability Information
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Vulnerability Title
Event Organiser <= 3.12.9 - Authenticated (Contributor+) Stored Cross-Site Scripting via eo_events Shortcode
Source: CVE Program / CVE List V5
Vulnerability Description
The Event Organiser plugin for WordPress is vulnerable to Stored Cross-Site Scripting in all versions up to, and including, 3.12.9. This is due to the 'eo_events' shortcode accepting attacker-controlled 'no_events' content and rendering it in event list templates without 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
Vulnerability Title
WordPress Event Organiser 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress Event Organiser是WordPress基金会的一款管理活动日程的CMS插件。 WordPress Event Organiser 3.12.9及之前版本存在跨站脚本漏洞，该漏洞源于'eo_events'短代码接收攻击者控制的'no_events'内容并在事件列表模板中输出，未经过输出转义，可能导致经过身份验证且具有贡献者级别及以上权限的攻击者注入任意Web脚本，当用户访问被注入页面时执行。
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 |
|---|---|---|---|---|
| stephenharris | Event Organiser | 0 ~ 3.12.9 | - |
II. Public POCs for CVE-2026-2387
| # | POC Description | Source Link | Shenlong Link |
|---|
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Patches & Fixes for CVE-2026-2387 (1)
Vendor Advisories for CVE-2026-2387 (1)
IV. Related Vulnerabilities
Same weakness: CWE-79
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Stored Cross-Site Scripting via MIME-Type Confusion in PDF D - CVE-2026-63670
ApostropheCMS: Mutation-XSS / allowedTags bypass via literal - CVE-2026-33437
Stirling PDF: Stored XSS in Info Summary
V. Comments for CVE-2026-2387
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