CVE-2026-74999
CVSS Score
5.4
EPSS Score
0.0%
EPSS Percentile
0th
In Roundcube Webmail before 1.6.18 and 1.7.x before 1.7.3, the "Add to address book" action was subject to stored XSS.
| CWE | CWE-79 |
| Vendor | roundcube |
| Product | webmail |
| Published | Aug 17, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None
Affected Versions
Roundcube / Webmail
1.6.0 < 1.6.18 1.7.0 < 1.7.3
References
roundcube.net: https://roundcube.net/news/2026/08/09/security-updates-1.6.18-and-1.7.3 github.com: https://github.com/roundcube/roundcubemail/releases/tag/1.6.18 github.com: https://github.com/roundcube/roundcubemail/commit/32f20c6bfd12dff9cfb6880ae303e740f0804fe8 github.com: https://github.com/roundcube/roundcubemail/releases/tag/1.7.3 github.com: https://github.com/roundcube/roundcubemail/commit/2d2a9604a820ee279c9ffcfe856b9b93a93995a8