Cyber Resilience

CVE-2023-2000

Open Redirect in Mattermost Desktop ≤ 5.2.2

Open Redirect
Published
02 May 2023
Modified
21 November 2024
Patch / advisory
View advisory
CVSS Score v3.1 5.4
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
EPSS Score 0.0036 29th percentile
Risk Priority 41 floored blend · peak EPSS

Summary

CVE-2023-2000 is a medium-severity Open Redirect (CWE-601) vulnerability in Mattermost Mattermost Desktop. Its CVSS base score is 5.4 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Phishing (T1566); ranked at the 29th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

OWASP Top 10 for Web (2025)

A01:2025 Broken Access Control

EU & UK References

Vulnerability Data

Mattermost Desktop App fails to validate a mattermost server redirection and navigates to an arbitrary website

CWE(s)
CWE-601

Related Threats

MITRE ATT&CK Enterprise Techniques

T1566 Phishing Initial Access
Adversaries may send phishing messages to gain access to victim systems.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2026-9602Same product: Mattermost Mattermost Desktop
CVE-2025-9084Same vendor: Mattermost
CVE-2023-47168Same vendor: Mattermost
CVE-2024-39613Same product: Mattermost Mattermost Desktop
CVE-2023-5875Same product: Mattermost Mattermost Desktop
CVE-2026-8683Same product: Mattermost Mattermost Desktop
CVE-2025-13321Same product: Mattermost Mattermost Desktop
CVE-2025-62690Same vendor: Mattermost
CVE-2026-1628Same product: Mattermost Mattermost Desktop
CVE-2026-4643Same product: Mattermost Mattermost Desktop

Affected Assets

mattermost
mattermost desktop
≤ 5.2.2

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)
  • V3.7.2

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.

AT-2 Literacy Training and Awareness
addresses: CWE-601

Security awareness includes verifying URLs and avoiding untrusted redirects that lead to malicious sites.

SI-10 Information Input Validation
addresses: CWE-601

Validates redirect targets and URLs to ensure they conform to allowed destinations.

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 SDLC practices directly require input validation and untrusted-redirect controls that prevent CWE-601.

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.

A.8.23 Web filtering partial match
mitigates

Preventing access to attacker-controlled or malicious sites stops users from being redirected to untrusted locations via open-redirect or phishing links.

References