RoundCube Webmail Cross-site Scripting Vulnerability. Actively exploited: CISA added this vulnerability to its Known Exploited Vulnerabilities catalog on 20/02/2026. Patch affected systems as an emergency.
| Package | Affected versions | Patched versions |
|---|---|---|
| webmail | ≥ 1.6.0, < 1.6.12< 1.5.12 | 1.6.121.5.12 |
Roundcube Webmail before 1.5.12 and 1.6 before 1.6.12 is prone to a Cross-Site-Scripting (XSS) vulnerability via the animate tag in an SVG document.
Running one of these products? Scan your site to see whether it exposes a vulnerable version.
Scan my site free