What is CVE-2018-14905?

CVE-2018-14905 is a medium-severity vulnerability in 3cx Web Server, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2018-08-03.

How severe is CVE-2018-14905?

Medium severity. CVSS v3 base score is 6.1 out of 10.

Is CVE-2018-14905 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XSS in 3cx Web Server

CVE-2018-14905

The Web server in 3CX version 15.5.8801.3 is vulnerable to Reflected XSS on the api/CallLog TimeZoneName parameter.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2018-08-03 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.007 (51.1th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 51st percentile — 51.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000

Affected products

3cx Web Server — versions 15.5.8801.3

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

sketler/sketler

References

medium.com/stolabs/security-issues-on-3cx-web-service-d9dc7f1bea79 (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2018-14905?: CVE-2018-14905 is a medium-severity vulnerability in 3cx Web Server, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2018-08-03.
How severe is CVE-2018-14905?: Medium severity. CVSS v3 base score is 6.1 out of 10.
Is CVE-2018-14905 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.