CVE-2020-28949
PEAR Archive_Tar Deserialization of Untrusted Data Vulnerability
- Published
- Nov 19, 2020
- Updated
- Oct 21, 2025
- Assigning CNA
- mitre
- Evidence observed
- Aug 25, 2022
Primary CVSS
nvd · CVSS 3.1
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HHigh · next 30 days
- Percentile
- 99.7%
- Model date
- Sep 21, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
CISA Known Exploited
This CVE appears in the CISA Known Exploited Vulnerabilities catalog.
Summary
Archive_Tar through 1.4.10 has :// filename sanitization only to address phar attacks, and thus any other stream-wrapper attack (such as file:// to overwrite files) can still succeed.
Sources
3Proof-of-concept demonstration for CVE-2020-28948 and CVE-2020-28949, PHP Archive_Tar path traversal and arbitrary file write vulnerabilities.
Proof-of-concept exploit for CVE-2020-28948 and CVE-2020-28949 targeting PHAR deserialization and inclusion vulnerabilities in Archive_Tar, enabling remote file deletion and code execution.
Proof-of-concept exploit for CVE-2020-28948 and CVE-2020-28949, demonstrating remote code execution vulnerabilities in web applications.
Responsible use
Use vulnerability information only on systems you own or are authorized to test. Kitploit links to public research metadata and does not store exploit code or malicious payloads.