CVE-2019-6146 — It has been reported that cross-site scripting (XSS) is possible in Forcepoint W

It has been reported that cross-site scripting (XSS) is possible in Forcepoint Web Security, version 8.x, via host header injection. CVSSv3.0: 5.3 (Medium) (/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)

01What is this vulnerability?

It has been reported that cross-site scripting (XSS) is possible in Forcepoint Web Security, version 8.x, via host header injection. CVSSv3.0: 5.3 (Medium) (/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)

02Affected products

Vendor	Product	Versions
n	a / Forcepoint Web Security	8.5, 8.4

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: 2020-01-22T16:10:21.000Z
• Last modified: 2024-08-04T20:16:23.669Z

09References

• packetstormsecurity.com — http://packetstormsecurity.com/files/156274/Forcepoint-WebSecurity-8.5-Cross-Sit…
• help.forcepoint.com — https://help.forcepoint.com/security/CVE/CVE-2019-6146.html