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CVE-2018-20234

30
FAUCET Score

CVE-2018-20234 is an argument injection vulnerability affecting Atlassian Sourcetree for macOS versions 1.2 through 3.1.0. An authenticated remote attacker with commit access to a Mercurial repository could exploit this flaw by crafting malicious filenames, leading to arbitrary code execution on the user's system. With a CVSS score of 8.8 (High), this vulnerability presents a significant risk due to its low attack complexity and high impact on confidentiality, integrity, and availability. There is no evidence of active exploitation, nor are public exploits or Metasploit modules available, and it has received minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
>= 1.2.0, < 3.1.1CPE matchmatch criteria
cpe:2.3:a:atlassian:sourcetree:*:*:*:*:*:macos:*:*

CVSS Data

CVSS version used by this source: 3.0

8.8HIGH

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
5.91%
Probability of exploitation in next 30 days
EPSS Percentile
92.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0591 is in the 92nd percentile among its peer group of 17,844 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

packetstormsecurity.com / files/152173/Sourcetree-Git-Arbitrary-Code-Execution-URL-Handling.html
jira.atlassian.com / browse/SRCTREE-6391
Issue TrackingVendor Advisory
seclists.org / bugtraq/2019/Mar/30
securityfocus.com / bid/107414