Authenticated arbitrary file deletion via path traversal
Published Jul 25, 2025 · Updated Jul 25, 2025
Path traversal in ChanCMS 3.1.0 through 3.1.2 allows remote authenticated users to delete files via a crafted pathname. The delfile function in app/extend/utils.js passes an unvalidated caller-controlled pathname to filesystem deletion operations, allowing traversal outside the intended directory. Low-privileged authenticated access is required, and successful exploitation can remove application-accessible files and interrupt service.
Summary
What happened
Path traversal in ChanCMS 3.1.0 through 3.1.2 allows remote authenticated users to delete files via a crafted pathname. The delfile function in app/extend/utils.js passes an unvalidated caller-controlled pathname to filesystem deletion operations, allowing traversal outside the intended directory. Low-privileged authenticated access is required, and successful exploitation can remove application-accessible files and interrupt service.
The record
- CVE
- CVE-2025-8132
- Published
- Jul 25, 2025
- Updated
- Jul 25, 2025
- Vendor
- ChanCMS
- Product
- ChanCMS
- Classifications
- CWE-22, T1485
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Jul 25, 2025CVE publishedPublication date reported by the CVE source.
- Jul 25, 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=3.1.0
- Affected versionversion=3.1.1
- Affected versionversion=3.1.2
What conditions does exploitation require?
What is affected?
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
- Gitee issue ICLOT8 proof of conceptproof of concept · unverified
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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