CVE-2026-35539
An issue was discovered in Roundcube Webmail before 1.5.14 and 1.6.14.
Published Apr 3, 2026 · updated Jul 24, 2026 · roundcube webmail
An issue was discovered in Roundcube Webmail before 1.5.14 and 1.6.14. XSS exists because of insufficient HTML attachment sanitization in preview mode. A victim must preview a text/html attachment.
Code
The project this record applies to. Exploit listings stay in References.
Timeline
Detection, updates, and resolution for this record.
Apr 3, 2026 · NIST NVD
Detected
An issue was discovered in Roundcube Webmail before 1.5.14 and 1.6.14. XSS exists because of insufficient HTML attachment sanitization in preview mode. A victim must preview a text/html attachment.
Jul 24, 2026 · NIST NVD
Updated
An issue was discovered in Roundcube Webmail before 1.5.14 and 1.6.14. XSS exists because of insufficient HTML attachment sanitization in preview mode. A victim must preview a text/html attachment.
Affected
- cpe roundcube/webmailversion unspecified
Sources
- CVE.orgVulnerability recordCVE-2026-35539
Official CVE identifier
cve.org - NIST NVDVulnerability recordCVE-2026-35539
An issue was discovered in Roundcube Webmail before 1.5.14 and 1.6.14. XSS exists because of insufficient HTML attachment sanitization in preview mode. A victim must preview a text/html attachment.
nvd.nist.gov