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CVE-2025-66208— Configuration-Dependent RCE (OS Command Injection) in richdocumentscode proxy

Quick assessment

Affected
CollaboraOnline online
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.

Collabora Online是英国Collabora公司的一个应用软件。一个强大的基于 LibreOffice 的在线办公室，支持所有主要的文档、电子表格和演示文件格式。 Collabora Online 25.04.702之前版本存在操作系统命令注入漏洞，该漏洞源于richdocumentscode代理存在OS命令注入，可能导致远程代码执行。

AI Predicted 8.1 Difficulty: Moderate EPSS 1.08% · P64
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I. Basic Information for CVE-2025-66208

Vulnerability Information
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Vulnerability Title
Configuration-Dependent RCE (OS Command Injection) in richdocumentscode proxy
Source: CVE Program / CVE List V5
Vulnerability Description
Collabora Online - Built-in CODE Server (richdocumentscode) provides a built-in server with all of the document editing features of Collabora Online. In versions prior to 25.04.702, Collabora Online has a Configuration-Dependent RCE (OS Command Injection) in richdocumentscode proxy. Users of Nextcloud with Collabora Online - Built-in CODE Server app can be vulnerable to attack via proxy.php and an intermediate reverse proxy. This vulnerability is fixed in 25.04.702.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U
Source: CVE Program / CVE List V5
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: CVE Program / CVE List V5
Vulnerability Title
Collabora Online 操作系统命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Collabora Online是英国Collabora公司的一个应用软件。一个强大的基于 LibreOffice 的在线办公室，支持所有主要的文档、电子表格和演示文件格式。 Collabora Online 25.04.702之前版本存在操作系统命令注入漏洞，该漏洞源于richdocumentscode代理存在OS命令注入，可能导致远程代码执行。
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
CollaboraOnline online < 25.04.702 -

II. Public POCs for CVE-2025-66208

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III. Intelligence Information for CVE-2025-66208

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Vendor Advisories for CVE-2025-66208 (1)

IV. Related Vulnerabilities

Same product: online
Same vendor: CollaboraOnline
Same weakness: CWE-78

V. Comments for CVE-2025-66208

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