Arbitrary file write via stored path traversal
Published May 14, 2026 · Updated May 14, 2026
Path traversal in Note Mark 0.13.0 through 0.19.3 allows remote authenticated users to write files outside an export directory. The asset upload handler stores the X-Name header unchanged in note_assets, and export code passes that name to path.Join or filepath.Join before os.Create. Exploitation requires an administrator to export the tainted note; root-run exports permit privileged file replacement and later code execution.
Summary
What happened
Path traversal in Note Mark 0.13.0 through 0.19.3 allows remote authenticated users to write files outside an export directory. The asset upload handler stores the X-Name header unchanged in note_assets, and export code passes that name to path.Join or filepath.Join before os.Create. Exploitation requires an administrator to export the tainted note; root-run exports permit privileged file replacement and later code execution.
The record
- CVE
- CVE-2026-44522
- Published
- May 14, 2026
- Updated
- May 14, 2026
- Vendor
- Enchanted Code
- Product
- Note Mark
- Classifications
- CWE-20, CWE-22, T1190
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- May 14, 2026CVE publishedPublication date reported by the CVE source.
- May 14, 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=>= 0.13.0, < 0.19.4
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
- GHSA-g49p-4qxj-88v3 reproduction and videoproof of concept · demonstrated
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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