XML external entity injection in Atlassian Crowd
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-611 and the CVSS impact.
Summary
The administration backup restore resource in Atlassian Crowd before version 3.0.2 and from version 3.1.0 before version 3.1.1 allows remote attackers to read files from the filesystem via a XXE vulnerability.
Why it matters now
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 | Crowd | before 3.0.2; 3.1.0 and later; before 3.1.1 | 3.0.2, 3.1.1 | Patch available | CNA |
- Crowd VendorAtlassian Affected before 3.0.2; 3.1.0 and later; before 3.1.1 Fixed in 3.0.2, 3.1.1 Patch available CNA
Remediation
- Fix · CNA Crowd (Atlassian) Fixed in 3.0.2, 3.1.1
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Atlassian Crowd 3.0.2, 3.1.1, unspecified
3 records Highest priority Priority LOW 3 LOW
Other records, highest priority first
- TI-2017-13312 Session fixation in Atlassian CrowdPriority LOW 38
- TI-2017-13316 Open redirect in Atlassian CrowdPriority LOW 30
Timeline
- 2026-10-02 Threatist record created from CVE-2017-18110
- 2026-10-03 Alias added: GHSA-6w64-j998-2q4m
References
More Atlassian Crowd vulnerabilities
- TI-2019-08653 Atlassian Crowd and Crowd Data Center had the pdkinstall development plugin incorrectly… KEVCVSS 3.1CRITICAL 9.8
- TI-2026-67904 Arbitrary file access in Atlassian Data Center products KEVCVSS 4.0CRITICAL 9.3
- TI-2012-02540 Atlassian JIRA before 5.0.1; Confluence before 3.5.16, 4.0 before 4.0.7, and 4.1 before… CVSS 3.1CRITICAL 9.1
- TI-2022-09598 Improper authentication in Atlassian Bamboo Server CVSS 3.1CRITICAL 9.8
- TI-2022-21516 Affected versions of Atlassian Crowd allow an attacker to authenticate as the crowd… CVSS 3.1CRITICAL 9.8
- TI-2016-05568 The LDAP directory connector in Atlassian Crowd before 2.8.8 and 2.9.x before 2.9.5… CVSS 3.0CRITICAL 9.8
Sources
- CVE-2017-18110 · CVE Program
- CVE-2017-18110 · NVD
- FIRST EPSS
- GHSA-6w64-j998-2q4m · GitHub Advisory Database · CC BY 4.0
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