CVE-2021-25016 json
Chaty < 2.8.3 - Reflected Cross-Site Scripting
published 2022-01-03 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-11928
- cvss
- 6.1
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.8%
- EPSS 1.8% chance of exploitation in 30 days, percentile 79%
- public exploits
- 0
- none known, plus a Nuclei check
Summary
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
Patch / fix
- premio chaty 2.8.3
- premio chaty_pro 2.8.2
Exploit prediction
1.85% chance of exploitation in the next 30 days, higher than 79% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- Nuclei template Chaty < 2.8.2 - Cross-Site Scripting nuclei detection template
- wpscan.com https://wpscan.com/vulnerability/b5035987-6227-4fc6-bc45-1e8016e5c4c0 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:N/I:P/A:N |
Affected products
- Unknown Floating Chat Widget: Contact Icons, Messages, Telegram, Email, SMS, Call Button – Chaty
- Unknown Floating Chat Widget Pro - Chaty Pro
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
- Technology feeds
References
-
wpscan.com
/vulnerability/b5035987-6227-4fc6-bc45-1e8016e5c4c0
exploit, third-party-advisory
Sources
- CVE List CVE-2021-25016
- NVD CVE-2021-25016
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.