Description
In Roundcube Webmail before 1.6.18 and 1.7.x before 1.7.3, responses from the CSS (Cascading Style Sheets) proxy were not validated, which may result in information disclosure or XSS (cross-site scripting) via MIME sniffing.
CVSS 7.2EPSS 0.268%Risk 0.74
View source- Published
- 2026-08-17 13:16:54
- Affected versions
- <1.6.18, <1.7.3
- Type
- Web application
- Last modified
- 2026-08-17 16:17:51
- Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N