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CVE-2026-22198— GestSup < 3.2.60 Stored XSS in API Error Logs

Quick assessment

Affected
GestSup GestSup
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.

GESTSUP是法国GESTSUP公司的一个应用软件。是100％基于Web的SUPport MANAGEMENT软件，它可以管理票证和设备。 GESTSUP 3.2.56及之前版本存在跨站脚本漏洞，该漏洞源于API错误日志记录功能中存在缺陷，可能导致未经身份验证的攻击者注入HTML或javascript代码，并在管理员查看日志时执行任意脚本。

AI Predicted 7.3 Difficulty: Easy EPSS 0.29% · P21
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I. Basic Information for CVE-2026-22198

Vulnerability Information
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Vulnerability Title
GestSup < 3.2.60 Stored XSS in API Error Logs
Source: CVE Program / CVE List V5
Vulnerability Description
GestSup versions prior to 3.2.60 contain a pre-authentication stored cross-site scripting (XSS) vulnerability in the API error logging functionality. By sending an API request with a crafted X-API-KEY header value (for example, to /api/v1/ticket.php), an unauthenticated attacker can cause attacker-controlled HTML/JavaScript to be written to log entries. When an administrator later views the affected logs in the web interface, the injected content is rendered without proper output encoding, resulting in arbitrary script execution in the administrator’s browser session.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/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
GESTSUP 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
GESTSUP是法国GESTSUP公司的一个应用软件。是100％基于Web的SUPport MANAGEMENT软件，它可以管理票证和设备。 GESTSUP 3.2.56及之前版本存在跨站脚本漏洞，该漏洞源于API错误日志记录功能中存在缺陷，可能导致未经身份验证的攻击者注入HTML或javascript代码，并在管理员查看日志时执行任意脚本。
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
GestSup GestSup 0 ~ 3.2.60 -

II. Public POCs for CVE-2026-22198

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III. Intelligence Information for CVE-2026-22198

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Vendor Pages for CVE-2026-22198 (1)

Same Patch Batch · GestSup · 2026-01-09 · 5 CVEs total

CVE-2026-22194 GestSup <= 3.2.60 CSRF Allows Privileged Actions
CVE-2026-22195 GestSup < 3.2.60 SQL Injection in Search Bar
CVE-2026-22197 GestSup < 3.2.60 Multiple SQL Injections in Asset List
CVE-2026-22196 GestSup < 3.2.60 SQL Injection in Ticket Creation

IV. Related Vulnerabilities

Same product: GestSup
Same vendor: GestSup
Same weakness: CWE-79

V. Comments for CVE-2026-22198

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