What is CVE-2026-16020?

CVE-2026-16020 is a medium-severity vulnerability in Fazile Bacak Defterasist Financial Advisor Platform, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-10-28.

How severe is CVE-2026-16020?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Fazile Bacak Defterasist Financial Advisor Platform

CVE-2026-16020

Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Fazile BACAK DefterAsist Financial Advisor Platform allows Stored XSS. This issue affects DefterAsist Financial Advisor Platform: through 2026-10-27.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2026-10-28 · last modified 2026-10-28.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.001 (2.8th percentile), scored 2026-10-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 3rd percentile — 2.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

The 30-day trend appears once there are two daily scores.

Affected products

Fazile Bacak Defterasist Financial Advisor Platform

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-26-1420 (government-resource)

Frequently asked questions

What is CVE-2026-16020?: CVE-2026-16020 is a medium-severity vulnerability in Fazile Bacak Defterasist Financial Advisor Platform, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-10-28.
How severe is CVE-2026-16020?: Medium severity. CVSS v3 base score is 5.4 out of 10.