Arbitrary file write via backup path traversal
Published Jul 9, 2024 · Updated Aug 27, 2025
Path traversal in Mommy Heather Advanced Backups 3.5.3 and earlier allows local users to write arbitrary files via a crafted backup. The command-line restore code resolves each ZIP entry name beneath the restore directory without rejecting parent-directory segments that escape it. Exploitation requires a local user to supply and restore the malicious archive, allowing its contents to overwrite any file writable by the process.
Summary
What happened
Path traversal in Mommy Heather Advanced Backups 3.5.3 and earlier allows local users to write arbitrary files via a crafted backup. The command-line restore code resolves each ZIP entry name beneath the restore directory without rejecting parent-directory segments that escape it. Exploitation requires a local user to supply and restore the malicious archive, allowing its contents to overwrite any file writable by the process.
The record
- CVE
- CVE-2024-39118
- Published
- Jul 9, 2024
- Updated
- Aug 27, 2025
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-787
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jul 9, 2024CVE publishedPublication date reported by the CVE source.
- Aug 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?
What conditions does exploitation require?
What is affected?
Affected products and versions are unavailable in this record.
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
- ZipInputStream-related security bugs in Minecraft modsproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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