CVE-2020-13664 - CVE House
Back to Database
Status published High CVE-2020-13664

Arbitrary PHP code execution vulnerability in Drupal Core under certain...

Vulnerability Description

Arbitrary PHP code execution vulnerability in Drupal Core under certain circumstances. An attacker could trick an administrator into visiting a malicious site that could result in creating a carefully named directory on the file system. With this directory in place, an attacker could attempt to brute force a remote code execution vulnerability. Windows servers are most likely to be affected. This issue affects: Drupal Drupal Core 8.8.x versions prior to 8.8.8; 8.9.x versions prior to 8.9.1; 9.0.1 versions prior to 9.0.1.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

THREAT MONITOR

Am I Vulnerable?

Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2020-13664

Credits & Attribution

No credits recorded in the NVD database.

References

More from Drupal

View All →
CVE-2025-9954
Acquia DAM - Moderately critical - Access bypass, Information Disclosure - SA-CONTRIB-2025-105
Unknown 0
CVE-2025-9554
Owl Carousel 2 - Critical - Unsupported - SA-CONTRIB-2025-104
Unknown 0
CVE-2025-9553
API Key manager - Critical - Unsupported - SA-CONTRIB-2025-103
Unknown 0
CVE-2025-9552
Synchronize composer.json With Contrib Modules - Critical - Unsupported - SA-CONTRIB-2025-102
Unknown 0
CVE-2025-9551
Protected Pages - Moderately critical - Access bypass - SA-CONTRIB-2025-101
Unknown 0

Affected Vendor

Affected Software

Drupal Core
Vulnerable Versions:
8.8.x, 8.9.x, 9.0.1

Timeline

Official Publish: May 5th, 2021
Last Modified: August 4th, 2024
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.