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CVE-2026-102372— GestSup before 3.2.62 Stored XSS via Email Body in LOGIN IMAP Connector

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 3.2.62 之前的版本在 IMAP 登录连接器中未能正确对 HTML 邮件正文进行净化处理，使得未认证的攻击者能够在工单描述和回复中存储任意 JavaScript 代码。攻击者可以向被监控的邮箱发送包含 script 标签和事件处理程序的邮件，这些脚本会在技术人员浏览器中执行，从而导致工单数据泄露和未经授权的操作。

CVSS 6.1 · Medium
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I. Basic Information for CVE-2026-102372

Vulnerability Information
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Vulnerability Title
GestSup before 3.2.62 Stored XSS via Email Body in LOGIN IMAP Connector
Source: CVE Program / CVE List V5
Vulnerability Description
GestSup versions before 3.2.62 fail to properly sanitize HTML email bodies in the IMAP LOGIN connector, allowing unauthenticated attackers to store arbitrary JavaScript in ticket descriptions and replies. Attackers can send emails to the monitored mailbox containing script tags and event handlers that execute in technician browsers, enabling ticket data theft and unauthorized actions.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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
GestSup GestSup 0 ~ 3.2.62 -

II. Public POCs for CVE-2026-102372

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-102372

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Vendor Pages for CVE-2026-102372 (2)

Other References for CVE-2026-102372 (2)

Same Patch Batch · GestSup · 2026-09-29 · 3 CVEs total

CVE-2026-102373 6.5 MEDIUM GestSup before 3.2.62 Private Ticket Comment Disclosure via threadedit Parameter
CVE-2026-102374 6.1 MEDIUM GestSup before 3.2.62 Stored XSS via Double-Decoded Email Subject in OAuth IMAP Connector

IV. Related Vulnerabilities

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

V. Comments for CVE-2026-102372

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