Unauthenticated log file write via path traversal
Published Jul 20, 2026 · Updated Jul 20, 2026
Path traversal in All-in-One WP Migration and Backup before 7.106 allows remote attackers to write log files outside plugin storage. The ai1wm_error_path helper incorporates the untrusted storage parameter into an error-log pathname without removing traversal segments. A default active installation, no account, and no valid secret key are sufficient; exceeding max_input_vars triggers the shutdown handler, which writes fixed error data to a .log file.
Summary
What happened
Path traversal in All-in-One WP Migration and Backup before 7.106 allows remote attackers to write log files outside plugin storage. The ai1wm_error_path helper incorporates the untrusted storage parameter into an error-log pathname without removing traversal segments. A default active installation, no account, and no valid secret key are sufficient; exceeding max_input_vars triggers the shutdown handler, which writes fixed error data to a .log file.
The record
- CVE
- CVE-2026-12898
- Published
- Jul 20, 2026
- Updated
- Jul 20, 2026
- Vendor
- ServMask
- Product
- All-in-One WP Migration and Backup
- Classifications
- T1565.001
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jul 20, 2026CVE publishedPublication date reported by the CVE source.
- Jul 20, 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=7.87 <7.106
What conditions does exploitation require?
What is affected?
Published CVSS scores
No CVSS assessment is available in this record.
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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