What is CVE-2019-25737?

CVE-2019-25737 is a medium-severity vulnerability in Screets Live Chat Unlimited, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-06-04.

How severe is CVE-2019-25737?

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

XSS in Screets Live Chat Unlimited

CVE-2019-25737

Live Chat Unlimited 2.8.3 contains a stored cross-site scripting vulnerability that allows unauthenticated attackers to inject malicious scripts through the chat input field. Attackers can submit payloads containing script tags and event h…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.002 (11.3th 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

Screets Live Chat Unlimited — versions 2.8.3

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

disclosure@vulncheck.com (exploit)
disclosure@vulncheck.com (product)
disclosure@vulncheck.com (product)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2019-25737?: CVE-2019-25737 is a medium-severity vulnerability in Screets Live Chat Unlimited, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-06-04.
How severe is CVE-2019-25737?: Medium severity. CVSS v3 base score is 6.1 out of 10.