CVE-2017-16755 — An issue was discovered in Userscape HelpSpot before 4

An issue was discovered in Userscape HelpSpot before 4.7.2. A reflected cross-site scripting vulnerability exists in the "return" parameter of the "index.php?pg=moderated" endpoint. It executes when the return link is clicked.

01What is this vulnerability?

An issue was discovered in Userscape HelpSpot before 4.7.2. A reflected cross-site scripting vulnerability exists in the "return" parameter of the "index.php?pg=moderated" endpoint. It executes when the return link is clicked.

02Affected products

Vendor	Product	Versions
n	a / n/a	n/a

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2018-02-19T14:00:00.000Z
• Last modified: 2024-08-05T20:35:21.234Z

09References

• www.helpspot.com — https://www.helpspot.com/releases
• ruby.sh — https://ruby.sh/helpspot-disclosure-20180206.txt
• www.helpspot.com — https://www.helpspot.com/releases/version-4-7-2