What is CVE-2026-21730?

CVE-2026-21730 is a medium-severity vulnerability in Verint Verba, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-05-14.

How severe is CVE-2026-21730?

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

XSS in Verint Verba

CVE-2026-21730

Verba is affected by a Stored Cross-Site Scripting (XSS) vulnerability within its login logging mechanism. When an unauthenticated remote attacker attempts to log in using an incorrect username and password combination, the supplied userna…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.000 (14.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Verint Verba — versions 0
Verint Verba_collaboration_compliance_and_quality_management_platform

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

cvd@cert.pl (Third Party Advisory)

Frequently asked questions

What is CVE-2026-21730?: CVE-2026-21730 is a medium-severity vulnerability in Verint Verba, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-05-14.
How severe is CVE-2026-21730?: Medium severity. CVSS v3 base score is 6.1 out of 10.