Stored cross-site scripting in PegDown Formatter - CVE-2019-10374
Published: October 4, 2019
Vulnerability identifier: #VU21545
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Clear
CVE-ID: CVE-2019-10374
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Jenkins
Affected software:
PegDown Formatter
PegDown Formatter
Detailed vulnerability description
The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.
The vulnerability exists due to the affected software does not prevent the use of "javascript:" scheme in URLs for links. A remote authenticated attacker able to edit descriptions and other fields rendered using the configured markup formatter can insert links with the javascript scheme into the Jenkins UI.
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.
How to mitigate CVE-2019-10374
Install update from vendor's website.