MPXJ: Potential Path Traversal Vulnerability in Primavera P3 PRX and SureTrak STX readers
Impact
When reading a suitably crafted PRX or STX file, MPXJ can be made to write files to arbitrary locations in the file system.
Patches
This issue is addressed in MPXJ version 16.5.0.
Workarounds
Do not read PRX or STX files from untrusted sources.
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Java / Kotlin (Maven) | net.sf.mpxj:mpxj | >= 7.3.0, < 16.5.0 | 16.5.0 |
| .NET (NuGet) | MPXJ.Net | >= 7.3.0, < 16.5.0 | 16.5.0 |
| .NET (NuGet) | net.sf.mpxj | >= 7.3.0, < 16.5.0 | 16.5.0 |
| .NET (NuGet) | net.sf.mpxj-for-csharp | >= 7.3.0, < 16.5.0 | 16.5.0 |
| .NET (NuGet) | net.sf.mpxj-for-vb | >= 7.3.0, < 16.5.0 | 16.5.0 |
| Python (PyPI) | mpxj | >= 7.3.0, < 16.5.0 | 16.5.0 |
References
- https://github.com/joniles/mpxj/security/advisories/GHSA-7952-gx68-cjqr
- https://github.com/joniles/mpxj/commit/4347315afab1ef5a2907978a754fbc5b0ff58e6f
- https://github.com/joniles/mpxj
- https://github.com/joniles/mpxj/releases/tag/v16.5.0
- https://pypi.org/project/mpxj
- https://github.com/advisories/GHSA-7952-gx68-cjqr
- https://nvd.nist.gov/vuln/detail/CVE-2026-65829
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N- Weakness (CWE)
CWE-22- Platform
- Java / Kotlin (Maven), .NET (NuGet), Python (PyPI)
- Package
net.sf.mpxj:mpxj, MPXJ.Net, net.sf.mpxj- Disclosed
- 22.09.2026
- Updated
- 11.10.2026 15:18
Sources and licenses
OSV / GitHub Advisory Database - GHSA-7952-gx68-cjqr - CC BY 4.0
OSV / GitHub Advisory Database - PYSEC-2026-4108 - PyPA Advisory Database; CC BY 4.0
Vulnerability history: net.sf.mpxj:mpxj
All published vulnerabilities of this package (Java / Kotlin (Maven)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 6
- First → latest
- 12.2020 09.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- Critical 1
- High 1
- Medium 3
- Low 1
Disclosures per year
- 2020: 1
- 2021: 1
- 2022: 1
- 2023: 0
- 2024: 1
- 2025: 0
- 2026: 2
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MPXJ: Potential Path Traversal Vulnerability in Primavera P3 PRX and SureTrak STX readers this entry
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