CVE-2023-49788Network attack vector

Unauthenticated file overwrite via trusted client paths

Published Dec 8, 2023 · Updated Aug 2, 2024

Path traversal in Collabora Online Built-in CODE Server before 23.5.602 allows remote attackers to overwrite server-accessible files. The richdocumentscode path handler trusts browser-supplied paths in modified client-to-server commands and writes outside the transient session subdirectory. The built-in server lacks a chroot sandbox, so unauthenticated network access can alter any file writable by the server process.

CVSS severity7.2
High
EPSS probability0.50%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in Collabora Online Built-in CODE Server before 23.5.602 allows remote attackers to overwrite server-accessible files. The richdocumentscode path handler trusts browser-supplied paths in modified client-to-server commands and writes outside the transient session subdirectory. The built-in server lacks a chroot sandbox, so unauthenticated network access can alter any file writable by the server process.

The record

CVE
CVE-2023-49788
Published
Dec 8, 2023
Updated
Aug 2, 2024
Vendor
Collabora Productivity
Product
Collabora Online
Classifications
CWE-501, CWE-22, T1565.001, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 8, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 23.5.602

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Collabora Productivity · Collabora Onlineversion=< 23.5.602

Published CVSS scores

7.2GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-501Trust Boundary Violation
CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1565.001Stored Data Manipulation
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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