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01 Record

CVE-2023-22524

Certain versions of the Atlassian Companion App for MacOS were affected by a remote code execution vulnerability. An attacker could utilize WebSockets to bypass Atlassian Companion’s blocklist and

CriticalPUBLISHEDCNA: atlassian
CNA base score9.6 CVSS v3.xCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
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02 Description

Certain versions of the Atlassian Companion App for MacOS were affected by a remote code execution vulnerability. An attacker could utilize WebSockets to bypass Atlassian Companion’s blocklist and

03 Exploitation and scoring

Exploitation
Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.
SSVC decision
  • ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
24.70% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 97.8% of scored records. A rank, not a probability.
NVD base score
9.8 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2023-12-06 05:00Z2 YR AGO
Last updated
2026-02-25 16:53Z8 MO AGO
Reserved
2023-01-01
Assigning CNA
atlassian
Record state
PUBLISHED
Severity
Critical (CVSS 9.6)
CNA CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Weaknesses
No CWE assigned
Data version
5.2
Document digest
567e9e7e0719bdd046098f8e8a5201c396ea46f541944f1ed7201e758dc08bf6

05 Affected products

VendorProductVersionsPlatforms
AtlassianCompanion for Mac>= 1.0.0, >= 1.1.0, >= 1.2.0, >= 1.2.2, >= 1.2.3, >= 1.2.4, >= 1.2.5, >= 1.2.6, >= 1.3.0, >= 1.3.1, >= 1.4.1, >= 1.4.2, >= 1.4.3, >= 1.4.4, >= 1.4.5, >= 1.4.6, >= 1.5.0, >= 1.6.0, >= 1.6.1—

06 References