CVE-2026-6275— StatCounter <= 2.1.1 - Authenticated (Author+) Stored Cross-Site Scripting via Author Nickname
Possible ATT&CK Techniques 1AI
T1059.001 · PowerShellAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| statcounter | StatCounter – Free Real Time Visitor Stats | ≤ 2.1.1 | affected |
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I. Basic Information for CVE-2026-6275
Vulnerability Information
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Vulnerability Title
StatCounter <= 2.1.1 - Authenticated (Author+) Stored Cross-Site Scripting via Author Nickname
Source: CVE Program / CVE List V5
Vulnerability Description
The StatCounter – Free Real Time Visitor Stats plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 2.1.1 This is due to insufficient output escaping on the post author's nickname in the statcounter_addToTags() function. The function is hooked to wp_head and fires on every single post page. It retrieves the post author's nickname via the_author_meta() and echoes it directly into a JavaScript double-quoted string context inside a <script> block without applying esc_js() or any equivalent JavaScript-context escaping. This makes it possible for authenticated attackers with Author-level access and above to inject arbitrary web scripts into pages that will execute whenever any user (including unauthenticated visitors) accesses a post authored by the attacker.
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 plugin StatCounter 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress和WordPress plugin都是WordPress基金会的产品。WordPress是一套使用PHP语言开发的博客平台。该平台具有在基于PHP和MySQL的服务器上架设个人博客网站的功能。WordPress plugin是一个应用插件。 WordPress plugin StatCounter 2.1.1及之前版本存在跨站脚本漏洞，该漏洞源于statcounter_addToTags函数中未对文章作者昵称进行输出转义，可能导致认证攻击者注入任意Web脚本，在用户访问文章时执行。
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 |
|---|---|---|---|---|
| statcounter | StatCounter – Free Real Time Visitor Stats | 0 ~ 2.1.1 | - |
II. Public POCs for CVE-2026-6275
| # | POC Description | Source Link | Shenlong Link |
|---|
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Patches & Fixes for CVE-2026-6275 (3)
Vendor Pages for CVE-2026-6275 (1)
Other References for CVE-2026-6275 (1)
IV. Related Vulnerabilities
Same weakness: CWE-79
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Online Scheduling and Appointment Booking System <= 27.7 - U - CVE-2026-2357
Bold Page Builder <= 5.6.8 - Authenticated (Contributor+) St - CVE-2026-10734
Infility Global <= 2.15.21 - Unauthenticated Stored Cross-Si - CVE-2026-16775
Smash Balloon Social Post Feed <= 4.9.0 - Authenticated (Con - CVE-2026-16758
Snippet Shortcodes <= 5.2.0 - Authenticated (Contributor+) S
V. Comments for CVE-2026-6275
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