Arbitrary file write via unsanitized filename
Published Jun 27, 2025 · Updated Jun 27, 2025
Path traversal in sublinkX 1.0 through 1.8 allows remote authenticated users to write arbitrary files through the template API. The AddTemp function in api/template.go concatenates the filename form value with ./template/ and passes the path to os.WriteFile without sanitizing traversal segments. A valid low-privilege session is required, and parent-directory segments escape the template directory to overwrite files writable by the service account.
Summary
What happened
Path traversal in sublinkX 1.0 through 1.8 allows remote authenticated users to write arbitrary files through the template API. The AddTemp function in api/template.go concatenates the filename form value with ./template/ and passes the path to os.WriteFile without sanitizing traversal segments. A valid low-privilege session is required, and parent-directory segments escape the template directory to overwrite files writable by the service account.
The record
- CVE
- CVE-2025-6774
- Published
- Jun 27, 2025
- Updated
- Jun 27, 2025
- Vendor
- gooaclok819
- Product
- sublinkX
- Classifications
- CWE-22, T1190
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Jun 27, 2025CVE publishedPublication date reported by the CVE source.
- Jun 27, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=1.0
- Affected versionversion=1.1
- Affected versionversion=1.2
- Affected versionversion=1.3
- Affected versionversion=1.4
- Affected versionversion=1.5
- Affected versionversion=1.6
- Affected versionversion=1.7
- Affected versionversion=1.8
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- Arbitrary File Write Path Traversal proof of conceptproof of concept · unverified
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Technologies
Your stack
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Your stack
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