Cross-site scripting in Caddy - CVE-2017-5963
Published: February 12, 2017 / Updated: August 8, 2020
Vulnerability identifier: #VU39665
CSH Severity: Low
CVSS v4.0: 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-2017-5963
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Caddy
Affected software:
Caddy
Caddy
Detailed vulnerability description
The vulnerability allows a remote non-authenticated attacker to read and manipulate data.
An issue was discovered in caddy (for TYPO3) before 7.2.10. The vulnerability exists due to insufficient filtration of user-supplied data in the "paymillToken" HTTP POST parameter passed to the "caddy/Resources/Public/JavaScript/e-payment/paymill/api/php/payment.php" URL. An attacker could execute arbitrary HTML and script code in a browser in the context of the vulnerable website.
How to mitigate CVE-2017-5963
Install update from vendor's website.