#VU47489 Cross-site scripting in phpMyAdmin - CVE-2020-26934

Vulnerability identifier: #VU47489

Vulnerability risk: Low

CVSSv4.0: 1.2 [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/E:U/U:Clear]

CVE-ID: CVE-2020-26934

CWE-ID: CWE-79

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
phpMyAdmin
Web applications / Remote management & hosting panels

Vendor: phpMyAdmin

Description

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.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

phpMyAdmin: 2.5.0 - 2.5.7_pl1, 2.6.0 - 2.6.4_pl4, 2.7 - 2.7_pl1, 2.8.0 - 2.8.4, 2.9 rc1 - 2.9.2, 2.10.0 - 2.11.11.3, 3.0.0 - 3.0.1.1, 3.1.0 - 3.1.5, 3.2.0 - 3.2.5, 3.3.0 - 3.3.10.5, 3.4.0 - 3.4.11.1, 3.5.0 - 3.5.8.2, 4.0 - 4.0.10.20, 4.1.0 - 4.1.14.8, 4.2.0 - 4.2.13.3, 4.3.0 - 4.3.13.3, 4.4 - 4.4.15.10, 4.5.0 - 4.5.5.1, 4.6 - 4.6.6, 4.7.0 beta1 - 4.7.9, 4.8.0 - 4.8.5, 4.9.0 - 4.9.5, 5.0.0 - 5.0.2

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External links
https://www.phpmyadmin.net/security/PMASA-2020-5/
https://github.com/phpmyadmin/phpmyadmin/commit/19df63b0365621427697edc185ff7c9c5707c523

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.