How severe is CVE-2018-20236?

CVE-2018-20236 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-20236 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-20236?

CVE-2018-20236 affects Atlassian Sourcetree. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-20236?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2018-20236 published?

CVE-2018-20236 was published on 2019-03-08 and last updated on 2026-06-17.

CVE-2018-20236

CVE-2018-20236 is a high-severity vulnerability in Atlassian Sourcetree with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-77.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 9.3
EPSS exploit prediction: 6% (93rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-77
Affected product: Atlassian Sourcetree
Published: 2019-03-08
Last modified: 2026-06-17

Description

There was an command injection vulnerability in Sourcetree for Windows from version 0.5a before version 3.0.10 via URI handling. A remote attacker could send a malicious URI to a victim using Sourcetree for Windows to exploit this issue to gain code execution on the system.

Frequently asked questions

What is CVE-2018-20236?: There was an command injection vulnerability in Sourcetree for Windows from version 0.5a before version 3.0.10 via URI handling. A remote attacker could send a malicious URI to a victim using Sourcetree for Windows to exploit this issue to gain code execution on the system.
How severe is CVE-2018-20236?: CVE-2018-20236 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-20236 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-20236?: CVE-2018-20236 affects Atlassian Sourcetree. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-20236?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2018-20236 published?: CVE-2018-20236 was published on 2019-03-08 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:atlassian:sourcetree:*:*:*:*:*:windows:*:*

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