Authenticated arbitrary file read via path traversal
Published Feb 9, 2026 · Updated Feb 9, 2026
Path traversal in rachelos WeRSS 1.4.0 through 1.4.8 allows remote authenticated users to read arbitrary server files via a crafted filename. The download_export_file function builds a filesystem path from filename and returns it through FileResponse without confirming that the path remains inside the export directory. A low-privileged authenticated session is required, and the read is limited to files accessible to the service process.
Summary
What happened
Path traversal in rachelos WeRSS 1.4.0 through 1.4.8 allows remote authenticated users to read arbitrary server files via a crafted filename. The download_export_file function builds a filesystem path from filename and returns it through FileResponse without confirming that the path remains inside the export directory. A low-privileged authenticated session is required, and the read is limited to files accessible to the service process.
The record
- CVE
- CVE-2026-2216
- Published
- Feb 9, 2026
- Updated
- Feb 9, 2026
- Vendor
- rachelos
- Product
- WeRSS
- Classifications
- CWE-22, T1005
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Feb 9, 2026CVE publishedPublication date reported by the CVE source.
- Feb 9, 2026Record 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=1.4.0
- Affected versionversion=1.4.1
- Affected versionversion=1.4.2
- Affected versionversion=1.4.3
- Affected versionversion=1.4.4
- Affected versionversion=1.4.5
- Affected versionversion=1.4.6
- Affected versionversion=1.4.7
- Affected versionversion=1.4.8
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
- WeRSS Path Traversal Vulnerability Leads to Arbitrary File Readproof of concept · unverified
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Technologies
Your stack
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Your stack
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