CVE-2017-16755: An issue was discovered in Userscape HelpSpot before 4.7.2

Q: How do I fix CVE-2017-16755?

helpspot: upgrade to newer than 4.7.1. Exact commands for each OS are on this page.

Q: Is CVE-2017-16755 being exploited?

CVE-2017-16755 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2017-16755 affect?

CVE-2017-16755 affects helpspot. Severity is medium (CVSS 6.1). 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.

Q: How urgent is CVE-2017-16755?

Priority 41/100. Public exploit reference

This month

MEDIUM 6.1UPGRADE

CVE-2017-16755 is a medium-severity flaw (CVSS 6.1) affecting helpspot. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	6.1 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.9% (top 41%)
CISA exploited list	No
Weakness	CWE-79
Published	2018-02-19
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: userscape

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2018-02-19 14:29 UTCPublished CVE record published
2026-06-17 01:09 UTCUpdated Record last modified

userscape helpspot UPGRADE

Affected: <= 4.7.1

Fixed in: newer than 4.7.1

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy helpspot || rpm -q helpspot || helpspot --version

2. UPGRADE to newer than 4.7.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade helpspot

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade helpspot

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2017-16755?

helpspot: upgrade to newer than 4.7.1. Exact commands for each OS are on this page.

Is CVE-2017-16755 being exploited?

CVE-2017-16755 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2017-16755 affect?

CVE-2017-16755 affects helpspot. Severity is medium (CVSS 6.1). 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.

How urgent is CVE-2017-16755?

Priority 41/100. Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

CVE-2017-16756 HIGH 8.8 UPGRADE An issue was discovered in Userscape HelpSpot before 4.7.2

References

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