What is CVE-2017-11727?

CVE-2017-11727 is a medium-severity vulnerability in Connectwise Manage, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2017-07-31.

How severe is CVE-2017-11727?

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

XSS in Connectwise Manage

CVE-2017-11727

services/system_io/actionprocessor/Contact.rails in ConnectWise Manage 2017.5 allows arbitrary client-side JavaScript code execution (involving a ContactCommon field) on victims who click on a crafted link, aka XSS.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2017-07-31 · 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: 0.011 (63.3th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 63rd percentile — 63.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000

Affected products

Connectwise Manage — versions 2017.5

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

becomepentester.blogspot.in/2017/07/ConnectWise-Manage-XSS-CVE-2017-11727.html (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2017-11727?: CVE-2017-11727 is a medium-severity vulnerability in Connectwise Manage, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2017-07-31.
How severe is CVE-2017-11727?: Medium severity. CVSS v3 base score is 6.1 out of 10.