What is CVE-2017-2661?

CVE-2017-2661 is a medium-severity vulnerability in Clusterlabs Pcs, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2018-03-12.

How severe is CVE-2017-2661?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Clusterlabs Pcs

CVE-2017-2661

ClusterLabs pcs before version 0.9.157 is vulnerable to a cross-site scripting vulnerability due to improper validation of Node name field when creating new cluster or adding existing cluster.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2018-03-12 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.012 (66.3th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 66th percentile — 66.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: 0.000

Affected products

Clusterlabs Pcs — versions 0.9.157

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

github.com/ClusterLabs/pcs/commit/1874a769b5720ae5430f10c6cedd234430bc703f (Patch)
bugzilla.redhat.com/show_bug.cgi (Patch, Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2017-2661?: CVE-2017-2661 is a medium-severity vulnerability in Clusterlabs Pcs, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2018-03-12.
How severe is CVE-2017-2661?: Medium severity. CVSS v3 base score is 6.1 out of 10.