Cross-site scripting in phpMyAdmin - CVE-2020-26934

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Main Vulnerability Database Vulnerabilities #VU47489

Cross-site scripting in phpMyAdmin - CVE-2020-26934

Published: October 10, 2020 / Updated: October 16, 2020


Vulnerability identifier: #VU47489
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-2020-26934
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 within the transformation feature. 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

phpMyAdmin
Gentoo Linux
SUSE Linux
Opensuse
Ubuntu
Fedora
SUSE Package Hub for SUSE Linux Enterprise
phpmyadmin (Ubuntu package)
phpMyAdmin

How to mitigate CVE-2020-26934

Install updates from vendor's website.

phpMyAdmin - addressed in versions 4.9.6, 5.0.3
phpmyadmin (Ubuntu package) - update to 4:4.6.6-5ubuntu0.5
phpMyAdmin - addressed in versions 5.0.3-1.fc31, 5.0.3-1.fc32, 5.0.3-1.fc33

External References

Related Security Bulletins