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CVE-2022-39332— Cross-site scripting (XSS) in Nextcloud Desktop Client

Quick assessment

Affected
nextcloud security-advisories
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.

Nextcloud是德国Nextcloud公司的一套开源的自托管文件同步和共享的通信应用平台。 Nexcloud desktop 3.6.1之前版本存在跨站脚本漏洞，该漏洞源于攻击者可以通过用户状态和信息向桌面客户端应用程序注入任意HTML。

CVSS 4.6 · Medium EPSS 0.98% · P61
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I. Basic Information for CVE-2022-39332

Vulnerability Information
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Vulnerability Title
Cross-site scripting (XSS) in Nextcloud Desktop Client
Source: CVE Program / CVE List V5
Vulnerability Description
Nexcloud desktop is the Desktop sync client for Nextcloud. An attacker can inject arbitrary HyperText Markup Language into the Desktop Client application via user status and information. It is recommended that the Nextcloud Desktop client is upgraded to 3.6.1. There are no known workarounds for this issue.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/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
Vulnerability Title
Nextcloud 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Nextcloud是德国Nextcloud公司的一套开源的自托管文件同步和共享的通信应用平台。 Nexcloud desktop 3.6.1之前版本存在跨站脚本漏洞，该漏洞源于攻击者可以通过用户状态和信息向桌面客户端应用程序注入任意HTML。
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
nextcloud security-advisories < 3.6.1 -

II. Public POCs for CVE-2022-39332

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III. Intelligence Information for CVE-2022-39332

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Patches & Fixes for CVE-2022-39332 (1)

Vendor Advisories for CVE-2022-39332 (1)

Other References for CVE-2022-39332 (1)

Same Patch Batch · nextcloud · 2022-11-25 · 8 CVEs total

CVE-2022-39331 4.6 MEDIUM Cross-site Scripting (XSS) in Nexcloud Desktop Client
CVE-2022-39333 4.6 MEDIUM Cross-site scripting (XSS) in Nextcloud Desktop Client
CVE-2022-39339 4.3 MEDIUM Cleartext Transmission of Sensitive Information in user_oidc
CVE-2022-39334 3.9 LOW nextcloudcmd incorrectly trusts bad TLS certificates
CVE-2022-39338 3.5 LOW Stored cross site scripting (XSS) vulnerability via Authorization Endpoint in user_oidc
CVE-2022-39346 3.5 LOW Missing length validation of user displayname in nextcloud server
CVE-2022-41926 3.3 LOW Nextcloud Talk Android broadcast incorrect permission handling

IV. Related Vulnerabilities

Same product: security-advisories
Same vendor: nextcloud
Same weakness: CWE-79

V. Comments for CVE-2022-39332

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