Medium severity · published Sep 12, 2025
CVE-2025-55996
Viber Desktop 25.6.0 is vulnerable to HTML Injection via the text parameter of the message compose/forward interface
6.3
CVSS
0.2%
EPSS
No
On KEV
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 9% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
VI
Viber · Rakuten
through 25.6.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-55996
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-55996
Third Party Advisory
https://github.com/thawkhant/viber-desktop-html-injection
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