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CVE-2020-13664

HIGHCVSS 8.8/10EPSS 2.98%

Last modified

CVE-2020-13664 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. 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. EPSS estimates a 2.98% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
8.8/10

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

EPSS Probability
2.98%

85.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
DrupalDrupal>= 8.8.0, < 8.8.8
DrupalDrupal>= 8.9.0, < 8.9.1
DrupalDrupal>= 9.0.0, < 9.0.1

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2020-13664?
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.
How severe is CVE-2020-13664?
CVE-2020-13664 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 2.98% probability of exploitation in the next 30 days.
How do I fix CVE-2020-13664?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-13664?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST