CVE-2023-49782 - CVE House
Back to Database
Status published High CVE-2023-49782

Cross-Site-Scripting vulnerability in error message passing in richdocumentscode

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. The bug was fixed in Collabora Online - Built-in CODE Server (richdocumentscode) release 23.5.601. 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.

THREAT MONITOR

Am I Vulnerable?

Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2023-49782

Credits & Attribution

No credits recorded in the NVD database.

References

More from CollaboraOnline

View All →
CVE-2025-66208
Configuration-Dependent RCE (OS Command Injection) in richdocumentscode proxy
High 7.2
CVE-2025-27791
Collabora Online Vulnerable to Arbitrary File Write
High 8.3
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:
< 23.5.601

Timeline

Official Publish: December 8th, 2023
Last Modified: August 2nd, 2024
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