SB2026033005 - Security restrictions bypass in Roundcube Webmail
Published: March 30, 2026
Security Bulletin ID
SB2026033005
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Protection mechanism failure (CVE-ID: N/A)
CWE-ID: CWE-693 - Protection Mechanism Failure
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to bypass implemented security restrictions.
The vulnerability exists due to insufficient implementation of security measures when handling SVG images. A remote attacker can bypass SVG animate FUNCIRI attribute and load images from a remote location via fill, filter, or stroke and gain access to sensitive information.
Remediation
Install update from vendor's website.