CVE-2023-48314 - CVE House
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Status published High CVE-2023-48314

Unescaped passing of the request URL in Collabora Online

Vulnerability Description

Collabora Online is a collaborative online office suite based on LibreOffice technology. Users of Nextcloud with Collabora Online Built-in CODE Server app can be vulnerable to attack via proxy.php. This vulnerability has been fixed in Collabora Online - Built-in CODE Server (richdocumentscode) release 23.5.403. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

More from CollaboraOnline

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CVE-2025-66208
Configuration-Dependent RCE (OS Command Injection) in richdocumentscode proxy
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CVE-2025-27791
Collabora Online Vulnerable to Arbitrary File Write
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CVE-2025-24796
Remote Code Execution within Collabora Online jail with Macros Enabled
Medium 6.3
CVE-2024-45045
JavaScript Injection via url encoded values in links in Collabora Office Android
Medium 6.3
CVE-2024-37311
Collabora Online's remote host TLS certificates are not fully verified
High 8.2

Affected Vendor

CollaboraOnline

View all reports →

Affected Software

online
Vulnerable Versions:
< 23.5.403

Timeline

Official Publish: December 1st, 2023
Last Modified: June 3rd, 2025
Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L

Weaknesses (CWE)

CWE-79

MITRE ATT&CK TTPs

T1189 Drive-by Compromise
Initial Access
T1059.007 JavaScript
Execution
T1539 Steal Web Session Cookie
Collection
T1213 Data from Information Repositories
Collection
T1567 Exfiltration Over Web Service
Exfiltration
T1491.001 Defacement
Impact