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 handlers that execute in the admin area, enabling cookie theft or forced redirects to malicious websites.
CVE-2019-25737
MEDIUMPre-NVD 6.17.2▲Elevated
EchelonGraph scoreMEDIUM confidence
Score 7.2 from GitHub Security Advisory published 2026-06-04. the CNA's CVSS baseline 6.1; sources differ by 1.1.
Triggered by: GitHub Security Advisory CVSS
Sources: cna:vulncheck, epss, ghsa
6.1
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
- Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 6.1Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 6.1
- EG Score
- 7.2(medium)
- EPSS
- 11.3%
- KEV
- Not listed
Published
June 4, 2026
Last Modified
June 11, 2026
Advisory Details (2)
Auto-updated Jun 13, 2026No patch confirmed yet.
generic
Live Chat Unlimited 2.8.3 Stored Cross-Site Scripting | Advisories | VulnCheck
https://www.vulncheck.com/advisories/live-chat-unlimited-stored-cross-site-scriptingVendor Advisories for CVE-2019-25737(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Frequently asked(5)
What is CVE-2019-25737?
CVE-2019-25737 is a medium vulnerability published on June 4, 2026. 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 handlers that execute in the admin area, enabling cookie…
When was CVE-2019-25737 disclosed?
CVE-2019-25737 was first published in the National Vulnerability Database on June 4, 2026, with the most recent update on June 11, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2019-25737 actively exploited?
CVE-2019-25737 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 11.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2019-25737?
CVE-2019-25737 has a CVSS v4.0 base score of 6.1 (CNA self-assessment; NVD's own analysis pending). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 7.2.
How do I remediate CVE-2019-25737?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2019-25737, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2019-25737
Is Your Infrastructure Affected by CVE-2019-25737?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.