Authenticated arbitrary file deletion via backslash traversal
Published Feb 21, 2026 · Updated Feb 21, 2026
Path traversal in MegaGao production_ssm 4288d53bd35757b27f2d070057aefb2c07bdd097 allows remote authenticated users to delete arbitrary files. The pictureDelete endpoint strips forward-slash path segments from picName but leaves Windows backslash traversal sequences before constructing a deletion path. Low-privilege access to the web application is sufficient, and successful exploitation deletes files writable by the server process.
Summary
What happened
Path traversal in MegaGao production_ssm 4288d53bd35757b27f2d070057aefb2c07bdd097 allows remote authenticated users to delete arbitrary files. The pictureDelete endpoint strips forward-slash path segments from picName but leaves Windows backslash traversal sequences before constructing a deletion path. Low-privilege access to the web application is sufficient, and successful exploitation deletes files writable by the server process.
The record
- CVE
- CVE-2026-2864
- Published
- Feb 21, 2026
- Updated
- Feb 21, 2026
- Vendor
- MegaGao
- Product
- production_ssm
- Classifications
- CWE-22, T1070.004
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Feb 21, 2026CVE publishedPublication date reported by the CVE source.
- Feb 21, 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?
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- Affected versionversion=4288d53bd35757b27f2d070057aefb2c07bdd097
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
- production_ssm arbitrary file deletion proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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