Cyber Resilience

CVE-2023-49788

Path Traversal in Collaboraoffice Richdocumentscode ≤ 23.5.602

Published
08 December 2023
Modified
21 November 2024
Patch / advisory
CVSS Score v3.1 7.2
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
EPSS Score 0.0050 40th percentile
Risk Priority 54 floored blend · peak EPSS

Summary

CVE-2023-49788 is a high-severity Path Traversal (CWE-22) vulnerability in Collaboraoffice Richdocumentscode. Its CVSS base score is 7.2 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 40th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

OWASP Top 10 for Web (2025)

EU & UK References

Vulnerability Data

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…

more

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.

CWE(s)

Related Threats

MITRE ATT&CK Enterprise Techniques

T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2025-21048Shared CWE-22
CVE-2026-23939Shared CWE-22
CVE-2024-7145Shared CWE-22
CVE-2023-42225Shared CWE-22
CVE-2024-33109Shared CWE-22
CVE-2023-35016Shared CWE-22
CVE-2025-10723Shared CWE-22
CVE-2023-1163Shared CWE-22
CVE-2024-43996Shared CWE-22
CVE-2024-48510Shared CWE-22

Affected Assets

collaboraoffice
richdocumentscode
≤ 23.5.602

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

Detect
Catch it (NIST detect / respond)

Harden
Shrink the surface (DISA STIG)

Validate
Prove the fix (OWASP ASVS)
  • V5.3.2

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-501

Establishes and maintains trust boundaries with external organizations before allowing their systems to interact with organization resources.

addresses: CWE-501

Prevents information from crossing trust boundaries without explicit approved authorizations.

addresses: CWE-501

Defining interfaces, controls, and trust responsibilities in agreements helps prevent violations of trust boundaries during data exchanges.

addresses: CWE-501

Authorizing and reviewing connections helps maintain proper trust boundaries between internal components.

addresses: CWE-501

Controlling media movement outside controlled areas maintains separation between internal and external trust boundaries.

addresses: CWE-501

Review of inter-system matching programs identifies and corrects trust-boundary violations before data crosses organizational or policy domains.

addresses: CWE-501

Defines explicit trust boundaries for PII use via documented purposes and prevents processing outside those boundaries.

addresses: CWE-501

Explicitly binding attributes to information crossing trust boundaries prevents loss of security context that leads to trust-boundary violations.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
prevents

Secure-development practices (coding standards, reviews, validation) directly prevent mixing trusted and untrusted data inside the same structures.

ID.AM-03 partial match
prevents

Documented data-flow representations make trust boundaries explicit and help surface mixing of trusted/untrusted data.

PR.IR-01 partial match
prevents

Logical segmentation and access controls enforce separation between trust domains, reducing the chance of co-mingled data structures.

PR.PS-02 partial match
prevents

Patching/maintenance can remediate known path-traversal flaws in deployed software (partial prevention of exploitability) but does nothing to stop the coding defect from being introduced in the first place.

PR.AA-05 none match
prevents

PR.AA-05 defines and reviews access policies but does not address code-level pathname neutralization, so neither direction prevents CWE-22.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

prevents

Secure architecture principles require explicit trust zones and data segregation, mitigating mixing of trusted/untrusted data.

prevents

Secure coding standards can enforce input validation and data tagging, but do not guarantee architectural separation.

finds

Security testing in development catches path traversal via static/dynamic analysis.

prevents

Secure SDLC mandates input validation and path sanitization that directly prevent path traversal.

prevents

Application security requirements include rules for safe file handling and canonicalization.

mitigates

Information access restriction limits which files an application may read or write.

References