What is CVE-2026-16548?

CVE-2026-16548 is a medium-severity vulnerability in Chat Widget: Floating Customer Support Button For 30+ Channels, Supporting Sms, Calls, And, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 5.4/10. Published 2026-08-04.

How severe is CVE-2026-16548?

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

Arbitrary file upload in Chat Widget: Floating Customer Support Button For 30+ Channels, Supporting Sms, Calls, And

CVE-2026-16548

The Chat Widget: Floating Customer Support Button for 30+ Channels, Supporting SMS, Calls, and Chat WordPress plugin before 1.8.2 does not validate the type, extension, content, or size of files submitted to its public response endpoint a…

Vulnerability class: Unrestricted File Upload

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.

Affected products

Unknown Chat Widget: Floating Customer Support Button For 30+ Channels, Supporting Sms, Calls, And — versions 0

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

References

contact@wpscan.com (technical-description, exploit, vdb-entry)

Frequently asked questions

What is CVE-2026-16548?: CVE-2026-16548 is a medium-severity vulnerability in Chat Widget: Floating Customer Support Button For 30+ Channels, Supporting Sms, Calls, And, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 5.4/10. Published 2026-08-04.
How severe is CVE-2026-16548?: Medium severity. CVSS v3 base score is 5.4 out of 10.