XSS in Premio Chaty

CVE-2021-25016

The Chaty WordPress plugin before 2.8.3 and Chaty Pro WordPress plugin before 2.8.2 do not sanitise and escape the search parameter before outputting it back in the admin dashboard, leading to a Reflected Cross-Site Scripting

Vulnerability class: XSS (Cross-Site Scripting)

Published · last modified .

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.

EPSS exploit prediction

EPSS: 0.018 (77.6th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 78th percentile — 77.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2021-25016: held from 0.018 to 0.018.

EPSS over last 30 days · oldest: 0.018 · newest: 0.018 · change: 0.000

Affected products

  • Premio Chaty
  • Premio Chaty Pro
  • Floating Chat Widget: Contact Icons, Messages, Telegram, Email, Sms, Call Button – Chaty — versions 2.8.3
  • Floating Chat Widget Pro - Chaty — versions 2.8.2

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2021-25016?
CVE-2021-25016 is a medium-severity vulnerability in Premio Chaty, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2022-01-03.
How severe is CVE-2021-25016?
Medium severity. CVSS v3 base score is 6.1 out of 10.
Is CVE-2021-25016 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.