Is CVE-2020-28949 actively exploited?

CVE-2020-28949 has no public evidence of in-the-wild exploitation as of 2025-11-07.

What is the CVSS score for CVE-2020-28949?

CVE-2020-28949 has a CVSS score of 7.8 (HIGH severity). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

How do I patch CVE-2020-28949?

Patch guidance is available from php security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2020-28949.

Fix CVE-2020-28949 - HIGH php archive tar

Q: Which products are affected by CVE-2020-28949?

11 products: php archive tar, debian debian linux, debian debian linux, fedoraproject fedora, fedoraproject fedora, and 6 more.

Description

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.

CVSS Metrics

Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack Vector: local
Complexity: low
Privileges: none
User Action: required
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
Weaknesses: NVD-CWE-noinfo

Metadata

Primary Vendor: PHP
Published: 11/19/2020
Last Modified: 11/7/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

php : archive_tardebian : debian_linuxdebian : debian_linuxfedoraproject : fedorafedoraproject : fedorafedoraproject : fedorafedoraproject : fedoradrupal : drupaldrupal : drupaldrupal : drupaldrupal : drupal

Remediation Guidance

Executive Summary

View on NIST NVD