CVE-2026-74999
Medium
Description
In Roundcube Webmail before 1.6.18 and 1.7.x before 1.7.3, the "Add to address book" action was subject to stored XSS.
SeverityMedium
CVSS5.4
Exploit probability—
Product
Roundcube Webmail
PublishedAug 17, 2026
First seenAug 17, 2026
Weakness typeCWE-79Cross-site scripting (XSS)
How to fix
Update
- roundcube webmail1.6.18, 1.7.3 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| roundcube webmail | 1.6.0 ≤ v < 1.6.18, 1.7.0 ≤ v < 1.7.3 | 1.6.18, 1.7.3 |
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