5.4
Medium
CVE-2026-35540 An issue was discovered in Roundcube Webmail 1.6.0 before 1.6.14
Description
An issue was discovered in Roundcube Webmail 1.6.0 before 1.6.14. Insufficient Cascading Style Sheets (CSS) sanitization in HTML e-mail messages may lead to SSRF or Information Disclosure, e.g., if stylesheet links point to local network hosts.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Webmail 1.6 | 1.6.0 → < 1.6.14 | 1.6.14 |
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5.3
Medium