CVE-2024-42009
CriticalActively exploited (CISA KEV)
Description
A Cross-Site Scripting vulnerability in Roundcube through 1.5.7 and 1.6.x through 1.6.7 allows a remote attacker to steal and send emails of a victim via a crafted e-mail message that abuses a Desanitization issue in message_body() in program/actions/mail/show.php.
SeverityCritical
CVSS9.3
Exploit probability—
Product
Roundcube Webmail
PublishedAug 5, 2024
First seenAug 5, 2024
Added to KEVJun 9, 2025
Weakness typeCWE-79Cross-site scripting (XSS)
How to fix
CISA required action
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
CISA due date: Jun 30, 2025Update
- roundcube webmail1.5.8, 1.6.8 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| roundcube webmail | v < 1.5.8, 1.6.0 ≤ v < 1.6.8 | 1.5.8, 1.6.8 |
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