CVE-2026-48846
CVSS Score
6.5
EPSS Score
0.0%
EPSS Percentile
0th
In Roundcube Webmail 1.6.x before 1.6.16 and 1.7.x before 1.7.1, the remote image blocking feature can be bypassed via a crafted CSS var() value in an e-mail message, which may lead to information disclosure or access-control bypass.
| CWE | CWE-669 |
| Vendor | roundcube |
| Product | webmail |
| Published | May 25, 2026 |
| Last Updated | May 26, 2026 |
Stay Ahead of the Next One
Get instant alerts for roundcube webmail
Be the first to know when new medium vulnerabilities affecting roundcube webmail are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None
Affected Versions
Roundcube / Webmail
1.6.0 < 1.6.16 1.7.0 < 1.7.1
References
roundcube.net: https://roundcube.net/news/2026/05/24/security-updates-1.6.16-and-1.7.1 github.com: https://github.com/roundcube/roundcubemail/releases/tag/1.7.1 github.com: https://github.com/roundcube/roundcubemail/commit/59cca80908a61e662c5f81741449e9aeb91e8abe github.com: https://github.com/roundcube/roundcubemail/releases/tag/1.6.16 github.com: https://github.com/roundcube/roundcubemail/commit/852350486b88b35b8544e8a630fad89e99e2150a