CVE-2019-19367 — A cross-site scripting (XSS) vulnerability in app/fax/fax_files

A cross-site scripting (XSS) vulnerability in app/fax/fax_files.php in FusionPBX 4.4.1 allows remote attackers to inject arbitrary web script or HTML via the id parameter.

01What is this vulnerability?

A cross-site scripting (XSS) vulnerability in app/fax/fax_files.php in FusionPBX 4.4.1 allows remote attackers to inject arbitrary web script or HTML via the id parameter.

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: 2019-11-27T19:19:24.000Z
• Last modified: 2024-08-05T02:16:47.110Z

09References

• gist.github.com — https://gist.github.com/xax007/94183b11bdfe579fd860a37e74cd3a8e
• github.com — https://github.com/fusionpbx/fusionpbx/commit/72a5ce4d2d6bc0ec0e72bbfb76487e4761…