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CVE-2023-49788— Improper handling of browser-side provided input in richdocuments path handling

Quick assessment

Affected
CollaboraOnline online
Exploitation
Public or AI PoC available; prioritize validation
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 23.5.602之前版本存在安全漏洞，该漏洞源于容易受到修改后的客户端->服务器命令的攻击。

CVSS 7.2 · High EPSS 0.50% · P41

Possible ATT&CK Techniques 1 AI

T1222.001 · Windows Permissions
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I. Basic Information for CVE-2023-49788

Vulnerability Information
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Vulnerability Title
Improper handling of browser-side provided input in richdocuments path handling
Source: CVE Program / CVE List V5
Vulnerability Description
Collabora Online is a collaborative online office suite based on LibreOffice technology. Unlike a standalone dedicated Collabora Online server, the Built-in CODE Server (richdocumentscode) is run without chroot sandboxing. Vulnerable versions of the richdocumentscode app can be susceptible to attack via modified client->server commands to overwrite files outside the sub directory the server has provided for the transient session. Files which can be accessed are limited to those that the server process has access to. The bug was fixed in Collabora Online - Built-in CODE Server (richdocumentscode) release 23.5.602. Users are advised to upgrade. There are no known workarounds for this vulnerability.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
违背信任边界
Source: CVE Program / CVE List V5
Vulnerability Title
Collabora Online 安全漏洞
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 23.5.602之前版本存在安全漏洞，该漏洞源于容易受到修改后的客户端->服务器命令的攻击。
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
CollaboraOnline online < 23.5.602 -

II. Public POCs for CVE-2023-49788

# POC Description Source Link Shenlong Link
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Qwen3.6-35B-A3B · 7917 chars
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III. Intelligence Information for CVE-2023-49788

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IV. Related Vulnerabilities

Same product: online
Same vendor: CollaboraOnline
Same weakness: CWE-501

V. Comments for CVE-2023-49788

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