In Roundcube Webmail before 1.6.18 and 1.7.x before 1.7.3, an unclosed url() in a FuncIRI attribute of an SVG image could evade the remote image blocking, which may lead to information disclosure or privilege escalation.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
Low
Partial data leak
Integrity
None
No data modification
Availability
None
No disruption
CVSS Vector v3.1
Weakness Type (CWE)
Vulnerable Products 2
| Configuration | From (including) | Up to (excluding) |
|---|---|---|
|
Roundcube Webmail
cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:*
|
1.6.0
|
1.6.18
|
|
Roundcube Webmail
cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:*
|
1.7.0
|
1.7.3
|
References 5
https://github.com/roundcube/roundcubemail/commit/1cebea03474305d9f75a9a33d3088…
cve@mitre.org
https://github.com/roundcube/roundcubemail/commit/440277c32e6d84f3d116153af1cc8…
cve@mitre.org
https://github.com/roundcube/roundcubemail/releases/tag/1.6.18
cve@mitre.org
https://github.com/roundcube/roundcubemail/releases/tag/1.7.3
cve@mitre.org
https://roundcube.net/news/2026/08/09/security-updates-1.6.18-and-1.7.3
cve@mitre.org