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CVE-2026-25916

MEDIUM CVSS 3.1: 4.3 EPSS 0.04%
Updated Feb 09, 2026
Roundcube Webmail
Parameter Value
CVSS 4.3 (MEDIUM)
Affected Versions before 1.5.13
Type CWE-420
Vendor Roundcube Webmail
Public PoC No

Roundcube Webmail before 1.5.13 and 1.6 before 1.6.13, when "Block remote images" is used, does not block SVG feImage.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
Required
User action required

Impact Assessment

Confidentiality
Low
Partial data leak
Integrity
None
No data modification
Availability
None
No disruption

CVSS Vector v3.1

Weakness Type (CWE)

CWE-420

References 3

https://github.com/roundcube/roundcubemail/commit/26d7677
cve@mitre.org
https://news.ycombinator.com/item?id=46937012
cve@mitre.org
https://nullcathedral.com/posts/2026-02-08-roundcube-svg-feimage-remote-image-b…
cve@mitre.org
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