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CVE-2026-48209— Reflected XSS in authenticated agent context

Quick assessment

Affected
OTRS AG OTRS
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.

OTRS是德国OTRS公司的一个服务管理解决方案。 OTRS 7.0.x版本存在安全漏洞，该漏洞源于工单处理中用户可控输入中和不当，可能导致已认证攻击者通过特制请求参数执行反射型跨站脚本攻击。

CVSS 7.1 · High EPSS 0.22% · P13

Affected Version Matrix 2

VendorProduct Version RangeStatus
OTRS AG ((OTRS)) Community Edition 6.x affected
OTRS AG OTRS 7.0.x affected
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I. Basic Information for CVE-2026-48209

Vulnerability Information
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Vulnerability Title
Reflected XSS in authenticated agent context
Source: CVE Program / CVE List V5
Vulnerability Description
An improper neutralization of user-controllable input in OTRS or ((OTRS)) Community Edition ticket handling allows authenticated attackers to perform reflected cross-site scripting (XSS) attacks via crafted request parameters associated with ticket actions. By injecting malicious JavaScript into manipulated request URLs, attackers can execute arbitrary script code in the context of an authenticated agent session when the crafted link is opened. This issue affects OTRS: * 7.0.x Please note that ((OTRS)) Community Edition 6.x and before are vulnerable. Products based on the ((OTRS)) Community Edition also very likely to be affected
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:H/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
OTRS 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OTRS是德国OTRS公司的一个服务管理解决方案。 OTRS 7.0.x版本存在安全漏洞，该漏洞源于工单处理中用户可控输入中和不当，可能导致已认证攻击者通过特制请求参数执行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
OTRS AG OTRS 7.0.x -
OTRS AG ((OTRS)) Community Edition 6.x -

II. Public POCs for CVE-2026-48209

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III. Intelligence Information for CVE-2026-48209

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Vendor Advisories for CVE-2026-48209 (1)

Same Patch Batch · OTRS AG · 2026-06-01 · 7 CVEs total

CVE-2026-48188 9.1 CRITICAL SQL Injection via MySQL Quote Method
CVE-2026-48208 6.5 MEDIUM Denial-of-Service via SVG Rendering in Ticket
CVE-2026-48187 5.7 MEDIUM Email with special content can lead to DoS
CVE-2026-48189 5.7 MEDIUM Bypass DedicatedAgentToCustomerGroups Setting
CVE-2026-48191 3.5 LOW Wrong Permission Handling in Document Search Article Meta Filters
CVE-2026-48190 3.5 LOW Incorrect handling of permissions in External Interface Config Item List module

IV. Related Vulnerabilities

Same product: OTRS
Same vendor: OTRS AG
Same weakness: CWE-79

V. Comments for CVE-2026-48209

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