Stored cross-site scripting in pcs - CVE-2017-2661
Published: July 3, 2025
Vulnerability identifier: #VU112147
CSH Severity: Low
CVSS v4: 4.8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N]
CVE-ID: CVE-2017-2661
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The disclosed vulnerability allows a remote user to perform cross-site scripting (XSS) attacks.
The vulnerability exists due to insufficient sanitization of user-supplied data passed via the Node name field when creating new cluster or adding existing cluster. A remote user can inject 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
pcs
Ubuntu
pcs (Ubuntu package)
Ubuntu
pcs (Ubuntu package)
How to mitigate CVE-2017-2661
Install updates from vendor's website.
pcs - update to 0.9.157
pcs (Ubuntu package) - addressed in versions 0.9.149-1ubuntu1.1+esm1, 0.10.4-3ubuntu0.1~esm1, 0.10.11-2ubuntu3+esm1
pcs (Ubuntu package) - addressed in versions 0.9.149-1ubuntu1.1+esm1, 0.10.4-3ubuntu0.1~esm1, 0.10.11-2ubuntu3+esm1