Link following in Atlassian Bitbucket Server
Priority MEDIUM 48CWE-59Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA.
Summary
In browser editing in Atlassian Bitbucket Server from version 4.13.0 before 5.4.8 (the fixed version for 4.13.0 through 5.4.7), 5.5.0 before 5.5.8 (the fixed version for 5.5.x), 5.6.0 before 5.6.5 (the fixed version for 5.6.x), 5.7.0 before 5.7.3 (the fixed version for 5.7.x), and 5.8.0 before 5.8.2 (the fixed version for 5.8.x), allows authenticated users to gain remote code execution using the in browser editing feature via editing a symbolic link within a repository.
Why it matters now
EPSS 0.03426 88th percentileScored 2026-11-07
Fix Fixed Bitbucket Server (Atlassian): 5.4.8, 5.5.8, 5.6.5 +2
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Atlassian | Bitbucket Server | 4.13.0 and later; before 5.4.8; 5.5.0 and later; before 5.5.8; 5.6.0 and later; before 5.6.5; 5.7.0 and later; before 5.7.3; 5.8.0 and later; before 5.8.2 | 5.4.8, 5.5.8, 5.6.5, 5.7.3, 5.8.2 | Patch available | CNA |
- Bitbucket Server VendorAtlassian Affected 4.13.0 and later; before 5.4.8; 5.5.0 and later; before 5.5.8; 5.6.0 and later; before 5.6.5; 5.7.0 and later; before 5.7.3; 5.8.0 and later; before 5.8.2 Fixed in 5.4.8, 5.5.8, 5.6.5, 5.7.3, 5.8.2 Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:atlassian:bitbucket:*:*:*:*:*:*:*:* | 4.13.0 to before 5.4.8; after 5.5.0, before 5.5.8; 5.6.0 to before 5.6.5; 5.7.0 to before 5.7.3; 5.8.0 to before 5.8.2 | Vulnerable | Atlassian |
- cpe:2.3:a:atlassian:bitbucket:*:*:*:*:*:*:*:* Versions 4.13.0 to before 5.4.8; after 5.5.0, before 5.5.8; 5.6.0 to before 5.6.5; 5.7.0 to before 5.7.3; 5.8.0 to before 5.8.2 Vulnerable ·Atlassian
Remediation
- Fix · CNA Bitbucket Server (Atlassian) Fixed in 5.4.8, 5.5.8, 5.6.5, 5.7.3, 5.8.2
Timeline
- 2026-10-02 Threatist record created from CVE-2018-5225
- 2026-10-03 Alias added: GHSA-m5mm-7f4v-27v9
References
More Atlassian Bitbucket vulnerabilities
- TI-2022-17043 OS command injection in Atlassian Bitbucket Server KEVCVSS 3.1HIGH 8.8
- TI-2022-21515 Command injection in Atlassian Bitbucket Data Center CVSS 3.1CRITICAL 9.8
- TI-2022-09598 Improper authentication in Atlassian Bamboo Server CVSS 3.1CRITICAL 9.8
- TI-2019-11186 OS command injection in Atlassian Bitbucket Server CVSS 3.1CRITICAL 9.8
- TI-2019-02555 Path traversal in Atlassian Bitbucket Data Center CVSS 3.0CRITICAL 9.1
- TI-2022-09599 Origin validation error in Atlassian Bamboo Server CVSS 3.1HIGH 8.8
Sources
- CVE-2018-5225 · CVE Program
- CVE-2018-5225 · NVD
- FIRST EPSS
- GHSA-m5mm-7f4v-27v9 · GitHub Advisory Database · CC BY 4.0
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