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 handlers that execute in the admin area, enabling cookie theft or forced redirects to malicious websites.

CVSS v4.0

5.3 MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS v3.1

6.1 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS

0.21% chance of exploitation in the next 30 days, 11th percentile

Published

2026-06-04

Updated

2026-06-11

Proof-of-concept exploits (1)

• https://www.exploit-db.com/exploits/47037

References

• CVE Record
• NVD entry

Related

• CVE-2019-25736
• CVE-2019-25738
• CVE-2019-25735
• CVE-2019-25739
• CVE-2019-25734
• CVE-2019-25740