How severe is CVE-2020-36193?

CVE-2020-36193 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2020-36193 being actively exploited?

Yes. CVE-2020-36193 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2022-08-25, which means active exploitation has been confirmed. It should be prioritised for remediation.

What products are affected by CVE-2020-36193?

CVE-2020-36193 primarily affects Php Archive Tar. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-36193?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.

Does CVE-2020-36193 have an EU (EUVD) identifier?

Yes. CVE-2020-36193 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2021-0874. It is also flagged as exploited in the EUVD (since 2022-08-25).

When was CVE-2020-36193 published?

CVE-2020-36193 was published on 2021-01-18 and last updated on 2026-06-17.

CVE-2020-36193

CVE-2020-36193 is a high-severity vulnerability in Php Archive Tar with a CVSS 3.x base score of 7.5. It is listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, confirming it has been exploited in the wild (added 2022-08-25). The underlying weakness is classified as CWE-22.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 71% (99th percentile)
Actively exploited: Yes — listed in CISA KEV (added 2022-08-25)
EU (EUVD) id: EUVD-2021-0874
EU exploitation: Flagged exploited in the ENISA EU Vulnerability Database (since 2022-08-25)
Weakness: CWE-22
Affected product: Php Archive Tar
Published: 2021-01-18
Last modified: 2026-06-17

Description

Tar.php in Archive_Tar through 1.4.11 allows write operations with Directory Traversal due to inadequate checking of symbolic links, a related issue to CVE-2020-28948.

Frequently asked questions

What is CVE-2020-36193?: Tar.php in Archive_Tar through 1.4.11 allows write operations with Directory Traversal due to inadequate checking of symbolic links, a related issue to CVE-2020-28948.
How severe is CVE-2020-36193?: CVE-2020-36193 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2020-36193 being actively exploited?: Yes. CVE-2020-36193 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2022-08-25, which means active exploitation has been confirmed. It should be prioritised for remediation.
What products are affected by CVE-2020-36193?: CVE-2020-36193 primarily affects Php Archive Tar. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-36193?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.
Does CVE-2020-36193 have an EU (EUVD) identifier?: Yes. CVE-2020-36193 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2021-0874. It is also flagged as exploited in the EUVD (since 2022-08-25).
When was CVE-2020-36193 published?: CVE-2020-36193 was published on 2021-01-18 and last updated on 2026-06-17.

References

Affected products (8)

cpe:2.3:a:php:archive_tar:*:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:*:*:*:*:*:*:*:*

More vulnerabilities in Php Archive Tar

CVE-2020-28949 — High (CVSS 7.8): Archive_Tar through 1.4.10 has :// filename sanitization only to address phar attacks, and thus any other…
CVE-2020-28948 — High (CVSS 7.8): Archive_Tar through 1.4.10 allows an unserialization attack because phar: is blocked but PHAR: is not blocked.
CVE-2021-32610 — High (CVSS 7.1): In Archive_Tar before 1.4.14, symlinks can refer to targets outside of the extracted archive, a different vulnerability…

All CVEs affecting Php Archive Tar →

Other CWE-22 (Path Traversal) vulnerabilities

CVE-2026-55393 — Critical (CVSS 10.0): Unvalidated pathnames in the web interface in Teledyne FLIR Aware2 versions through 6.9.0.2 (PackBot) and 1.7.9…
CVE-2026-97163 — Critical (CVSS 10.0): Joomla Extension - lomart.fr - Unauthenticated remote code installation in UP plugin extension 5.0.0-5.2.0, 6.0.0-6.0.29
CVE-2026-80155 — Critical (CVSS 10.0): Lantronix SLC8000 before firmware v9.7.0.5, SLC9000 before firmware v9.7.0.2, EMG8500/EMG7500 before firmware v9.7.0.1,…
CVE-2026-70200 — Critical (CVSS 10.0): Improper limitation of a pathname to a restricted directory ('path traversal') in Azure Logic Apps allows an…
CVE-2026-85706 — Critical (CVSS 10.0): GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.7 before 18.11.12, 19.0 before 19.0.9,…
CVE-2026-76606 — Critical (CVSS 10.0): Joomla Extension - fabrikar.com - Path Traversal via image element in Fabrik < 4.7.2.

Browse all CWE-22 (Path Traversal) vulnerabilities →