What is CVE-2019-19852?

CVE-2019-19852 is a medium-severity vulnerability in Sangoma Freepbx, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2020-03-16.

How severe is CVE-2019-19852?

Medium severity. CVSS v3 base score is 4.8 out of 10.

XSS in Sangoma Freepbx

CVE-2019-19852

An XSS Injection vulnerability exists in Sangoma FreePBX and PBXact 13, 14, and 15 within the Call Event Logging report screen in the cel module at the admin/config.php?display=cel URI via date fields. This affects cel through 13.0.26.9, 14.x through 14.0.2.14, and 15.x through 15.0.15.4.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2020-03-16 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.006 (44.3th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 44th percentile — 44.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000

Affected products

Sangoma Freepbx

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

wiki.freepbx.org/display/FOP/List+of+Securities+Vulnerabilities (Vendor Advisory)
wiki.freepbx.org/display/FOP/2020-01-09+XSS+Injection+vulnerability+in+Call+Eve… (Vendor Advisory)

Frequently asked questions

What is CVE-2019-19852?: CVE-2019-19852 is a medium-severity vulnerability in Sangoma Freepbx, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2020-03-16.
How severe is CVE-2019-19852?: Medium severity. CVSS v3 base score is 4.8 out of 10.