How severe is CVE-2018-20235?

CVE-2018-20235 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-20235 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-20235?

CVE-2018-20235 affects Atlassian Sourcetree. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-20235?

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-2018-20235 published?

CVE-2018-20235 was published on 2019-03-08 and last updated on 2026-06-17.

CVE-2018-20235

CVE-2018-20235 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.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 9.0
EPSS exploit prediction: 7% (93rd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Atlassian Sourcetree
Published: 2019-03-08
Last modified: 2026-06-17

Description

There was an argument injection vulnerability in Atlassian Sourcetree for Windows from version 0.5a before version 3.0.15 via filenames in Mercurial repositories. A remote attacker with permission to commit to a Mercurial repository linked in Sourcetree for Windows is able to exploit this issue to gain code execution on the system.

Frequently asked questions

What is CVE-2018-20235?: There was an argument injection vulnerability in Atlassian Sourcetree for Windows from version 0.5a before version 3.0.15 via filenames in Mercurial repositories. A remote attacker with permission to commit to a Mercurial repository linked in Sourcetree for Windows is able to exploit this issue to gain code execution on the system.
How severe is CVE-2018-20235?: CVE-2018-20235 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-20235 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-20235?: CVE-2018-20235 affects Atlassian Sourcetree. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-20235?: 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-2018-20235 published?: CVE-2018-20235 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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