CVE-2023-1421— Reflected XSS in OAuth flow completion endpoints
Quick assessment
Affected
Mattermost Mattermost
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.
Mattermost是美国Mattermost公司的一个开源协作平台。 Mattermost OAuth存在安全漏洞，该漏洞源于存在反射型跨站脚本漏洞，攻击者利用该漏洞可以通过共享带有恶意状态参数的特制链接代表受害者发送AJAX请求。
Possible ATT&CK Techniques 2 AI
T1059 · Command and Scripting Interpreter T1189 · Drive-by Compromise
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I. Basic Information for CVE-2023-1421
Vulnerability Information
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Vulnerability Title
Reflected XSS in OAuth flow completion endpoints
Source: CVE Program / CVE List V5
Vulnerability Description
A reflected cross-site scripting vulnerability in the OAuth flow completion endpoints in Mattermost allows an attacker to send AJAX requests on behalf of the victim via sharing a crafted link with a malicious state parameter.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/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
Mattermost 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Mattermost是美国Mattermost公司的一个开源协作平台。 Mattermost OAuth存在安全漏洞，该漏洞源于存在反射型跨站脚本漏洞，攻击者利用该漏洞可以通过共享带有恶意状态参数的特制链接代表受害者发送AJAX请求。
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 |
|---|---|---|---|---|
| Mattermost | Mattermost | 5.32.0 ~ 7.7 | - |
|
II. Public POCs for CVE-2023-1421
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2023-1421 (1)
IV. Related Vulnerabilities
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V. Comments for CVE-2023-1421
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