Vulnerability Description
An issue was discovered in Roundcube Webmail before 1.5.14 and 1.6.14. The remote image blocking feature can be bypassed via a crafted background attribute of a BODY element in an e-mail message. This may lead to information disclosure or access-control bypass.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Roundcube | Webmail | < 1.5.14 |
Related Weaknesses (CWE)
References
- https://github.com/roundcube/roundcubemail/commit/e052328e3dc75f13adc2e314eaa409Patch
- https://github.com/roundcube/roundcubemail/commit/fd0e98178db5c73eaa93d005b56187Patch
- https://github.com/roundcube/roundcubemail/commit/fde14d01adc9f37893cd82b635883ePatch
- https://github.com/roundcube/roundcubemail/releases/tag/1.5.14Release Notes
- https://github.com/roundcube/roundcubemail/releases/tag/1.6.14Release Notes
- https://github.com/roundcube/roundcubemail/releases/tag/1.7-rc5Release Notes
- https://roundcube.net/news/2026/03/18/security-updates-1.7-rc5-1.6.14-1.5.14Vendor Advisory
FAQ
What is CVE-2026-35542?
CVE-2026-35542 is a vulnerability with a CVSS score of 5.3 (MEDIUM). An issue was discovered in Roundcube Webmail before 1.5.14 and 1.6.14. The remote image blocking feature can be bypassed via a crafted background attribute of a BODY element in an e-mail message. This...
How severe is CVE-2026-35542?
CVE-2026-35542 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-35542?
Check the references section above for vendor advisories and patch information. Affected products include: Roundcube Webmail.