Cross-site scripting in Backdrop CMS - CVE-2020-13672
Published: April 22, 2021 / Updated: July 1, 2021
Vulnerability identifier: #VU52498
CSH Severity: Low
CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N]
CVE-ID: CVE-2020-13672
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.
The vulnerability exists due to insufficient sanitization of user-supplied data. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.
Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.
Affected software
Backdrop CMS
Drupal
Fedora
drupal7
Drupal
Fedora
drupal7
How to mitigate CVE-2020-13672
Install updates from vendor's website.
Backdrop CMS - addressed in versions 1.17.7, 1.18.3
Drupal - addressed in versions 7.80, 8.9.14, 9.0.12, 9.1.7
drupal7 - addressed in versions 7.82-1.el7, 7.82-1.fc34, 7.82-1.fc35
Drupal - addressed in versions 7.80, 8.9.14, 9.0.12, 9.1.7
drupal7 - addressed in versions 7.82-1.el7, 7.82-1.fc34, 7.82-1.fc35