CVE-2021-36094— XSS attack in appointment edit popup screen
Quick assessment
Affected
OTRS AG ((OTRS)) Community Edition
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）公司的一个应用软件。一个服务管理软件。 OTRS AG OTRS 存在安全漏洞，该漏洞源于可以为预约编辑屏幕生成请求。攻击者可利用该漏洞导致XSS攻击。
Possible ATT&CK Techniques 1 AI
T1059.007 · JavaScript
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I. Basic Information for CVE-2021-36094
Vulnerability Information
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Vulnerability Title
XSS attack in appointment edit popup screen
Source: CVE Program / CVE List V5
Vulnerability Description
It's possible to craft a request for appointment edit screen, which could lead to the XSS attack. This issue affects: OTRS AG ((OTRS)) Community Edition 6.0.x version 6.0.1 and later versions. OTRS AG OTRS 7.0.x version 7.0.28 and prior versions.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/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 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OTRS是德国 （OTRS）公司的一个应用软件。一个服务管理软件。 OTRS AG OTRS 存在安全漏洞，该漏洞源于可以为预约编辑屏幕生成请求。攻击者可利用该漏洞导致XSS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)) Community Edition | 6.0.1 ~ 6.0.x* | - |
|
| OTRS AG | OTRS | 7.0.x ~ 7.0.28 | - |
|
II. Public POCs for CVE-2021-36094
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Other References for CVE-2021-36094 (1)
-
https://otrs.com/release-notes/otrs-security-advisory-2021-17/ x_refsource_CONFIRM
Same Patch Batch · OTRS AG · 2021-09-06 · 4 CVEs total
| CVE-2021-36095 | 5.3 MEDIUM | User enumeration issue using "lost password" feature |
| CVE-2021-36093 | 5.3 MEDIUM | DoS attack using PostMaster filters |
| CVE-2021-36096 | 5.2 MEDIUM | Support Bundle includes S/Mime and PGP secret or PIN |
IV. Related Vulnerabilities
Same product: ((OTRS)) Community Edition
-
CVE-2021-36096
Support Bundle includes S/Mime and PGP secret or PIN -
CVE-2021-36095
User enumeration issue using "lost password" feature -
CVE-2021-36093
DoS attack using PostMaster filters -
CVE-2021-36092
XSS attack using special link in email -
CVE-2021-36091
Unautorized access to the calendar appointments
Same vendor: OTRS AG
-
CVE-2026-48187
Email with special content can lead to DoS -
CVE-2026-48188
SQL Injection via MySQL Quote Method -
CVE-2026-48189
Bypass DedicatedAgentToCustomerGroups Setting -
CVE-2026-48190
Incorrect handling of permissions in External Interface Conf -
CVE-2026-48191
Wrong Permission Handling in Document Search Article Meta Fi
Same weakness: CWE-79
-
CVE-2026-103590
QloApps through 1.7.0 Reflected XSS via Length of Stay Field -
CVE-2026-103589
QloApps through 1.7.0 Reflected XSS via Room Type Editor -
CVE-2026-103588
QloApps through 1.7.0 Reflected XSS via exceptions field -
CVE-2026-103587
QloApps through 1.7.0 Reflected XSS via Book Now Search Para -
CVE-2026-47096
AJA HELO Plus < 2.1.7 Stored XSS via System Name Parameter
V. Comments for CVE-2021-36094
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