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CVE-2020-4043
Phar unserialization vulnerability in phpMussel
High7.7EPSS 2.6%
- Published
- Updated
- Reserved
- Assigned by
- GitHub_M
Description
phpMussel from versions 1.0.0 and less than 1.6.0 has an unserialization vulnerability in PHP's phar wrapper. Uploading a specially crafted file to an affected version allows arbitrary code execution (discovered, tested, and confirmed by myself), so the risk factor should be regarded as very high. Newer phpMussel versions don't use PHP's phar wrapper, and are therefore unaffected. This has been fixed in version 1.6.0.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| GitHub_MCNA (assigner) | 3.1 | High7.7 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N |
| NVDNVD · Modified | 3.1 | Critical9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 2.6% · top 15% of all CVEs (6 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.7.
Weakness
Affected products
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- Packagistmaikuolan/phpmusselGHSA-qr95-4mq5-r3fh (opens in a new tab)
- Packagistphpmussel/phpmusselGHSA-qr95-4mq5-r3fh (opens in a new tab)
References (5)
- https://github.com/phpMussel/phpMussel/security/advisories/GHSA-qr95-4mq5-r3fh (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://github.com/phpMussel/phpMussel/issues/167 (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/phpMussel/phpMussel/pull/173 (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/phpMussel/phpMussel/commit/97f25973433921c1f953430f32d3081adc4851a4 (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/phpMussel/phpMussel/security/policy#currently-known-vulnerabilities (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-qr95-4mq5-r3fh (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2020-4043)Record last updated .