CVE-2026-4816— Reflected Cross Site Scripting (XSS) vulnerability in Support Board
Quick assessment
Affected
Schiocco Support Board
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.
Support Board是英国Support Board公司的一个销售聊天软件。 Support Board 3.7.7版本存在跨站脚本漏洞，该漏洞源于对文件/supportboard/include/articles.php中参数search的错误操作，可能导致反射型跨站脚本攻击。
Possible ATT&CK Techniques 2 AI
T1059 · Command and Scripting Interpreter T1189 · Drive-by Compromise
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I. Basic Information for CVE-2026-4816
Vulnerability Information
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Vulnerability Title
Reflected Cross Site Scripting (XSS) vulnerability in Support Board
Source: CVE Program / CVE List V5
Vulnerability Description
A Reflected Cross Site Scripting (XSS) vulnerability has been found in Support Board v3.7.7. This vulnerability allows an attacker to execute JavaScript code in the victim's browser by sending the victim a malicious URL using the 'search' parameter in '/supportboard/include/articles.php'. This vulnerability can be exploited to steal sensitive user data, such as session cookies, or to perform actions on behalf of the user.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA: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
Support Board 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Support Board是英国Support Board公司的一个销售聊天软件。 Support Board 3.7.7版本存在跨站脚本漏洞，该漏洞源于对文件/supportboard/include/articles.php中参数search的错误操作，可能导致反射型跨站脚本攻击。
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 |
|---|---|---|---|---|
| Schiocco | Support Board | 0 ~ 3.7.7 | - |
|
II. Public POCs for CVE-2026-4816
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-4816 (1)
IV. Related Vulnerabilities
Same product: Support Board
-
CVE-2026-27395
WordPress Support Board plugin < 3.8.9 - Privilege Escalatio -
CVE-2026-4815
SQL Injection vulnerability in Support Board -
CVE-2025-60182
WordPress Support Board plugin < 3.8.7 - Cross Site Scriptin -
CVE-2025-54027
WordPress Support Board <= 3.8.0 - Cross Site Scripting (XSS -
CVE-2025-54031
WordPress Support Board <= 3.8.0 - Local File Inclusion Vuln
Same vendor: Schiocco
-
CVE-2026-27395
WordPress Support Board plugin < 3.8.9 - Privilege Escalatio -
CVE-2026-4815
SQL Injection vulnerability in Support Board -
CVE-2025-60182
WordPress Support Board plugin < 3.8.7 - Cross Site Scriptin -
CVE-2025-54027
WordPress Support Board <= 3.8.0 - Cross Site Scripting (XSS -
CVE-2025-54031
WordPress Support Board <= 3.8.0 - Local File Inclusion Vuln
Same weakness: CWE-79
-
CVE-2026-85679
Extendify <= 3.1.6 - Unauthenticated Stored Cross-Site Scrip -
CVE-2026-67075
HCL Digital Experience is affected by improper input sanitat -
CVE-2026-12241
Advanced Woo Labels – Product Labels & Badges for WooCommerc -
CVE-2026-96561
AI Engine <= 3.8.0 - Unauthenticated Stored Cross-Site Scrip -
CVE-2026-103590
QloApps through 1.7.0 Reflected XSS via Length of Stay Field
V. Comments for CVE-2026-4816
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