Cross-site scripting in Shaarli - CVE-2018-1046
Published: May 9, 2018 / Updated: May 10, 2018
Vulnerability identifier: #VU12562
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-2018-1046
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 weakness exists in the ban_canLogin function in index.php due to insufficient sanitization of user-supplied data. 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
Shaarli
Arch Linux
SUSE Linux
Ubuntu
openSUSE Leap
pdns-recursor (Ubuntu package)
pdns-server (Ubuntu package)
pdns-tools (Ubuntu package)
Arch Linux
SUSE Linux
Ubuntu
openSUSE Leap
pdns-recursor (Ubuntu package)
pdns-server (Ubuntu package)
pdns-tools (Ubuntu package)
How to mitigate CVE-2018-1046
Update to versions 0.8.5 or 0.9.3.
pdns-recursor (Ubuntu package) - update to Ubuntu Pro
pdns-server (Ubuntu package) - update to Ubuntu Pro
pdns-tools (Ubuntu package) - update to Ubuntu Pro
pdns-server (Ubuntu package) - update to Ubuntu Pro
pdns-tools (Ubuntu package) - update to Ubuntu Pro