Description
Viber Desktop 25.6.0 is vulnerable to HTML Injection via the text parameter of the message compose/forward interface
Affected products
rakuten: viber
References1
- github.com/thawkhant/viber-desktop-html-injection Third Party Advisory
Metrics
- CVSS 3.1
-
6.3
MEDIUM
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L - EPSS — exploit probability
- 0% percentile: 9 · as of 8 November 2026
- CWE
- CWE-79
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.