Cross-site scripting in Gollem - CVE-2020-8034
Published: May 18, 2020 / Updated: September 28, 2020
Vulnerability identifier: #VU47121
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-2020-8034
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.
The vulnerability exists due to insufficient sanitization of user-supplied data when processing data passed via the HTTP GET dir parameter in the browser functionality, affecting breadcrumb output. 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
Gollem
How to mitigate CVE-2020-8034
Install update from vendor's website.
Gollem - update to 3.0.12
External References
- https://github.com/horde/gollem/blob/95b2a4212d734f1b27aaa7a221d2fa1370d2631f/docs/CHANGES
- https://github.com/horde/gollem/commits/master
- https://lists.debian.org/debian-lts-announce/2020/05/msg00033.html
- https://lists.horde.org/archives/announce/2020/001289.html
- https://lists.horde.org/archives/gollem/Week-of-Mon-20200420/001990.html