Vulnerabilities

CVSS

9.3 Critical

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N

Risk score

100.0

Known exploited

CISA KEVEU KEV

Published

2024-08-05

Status

Published

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.

Weaknesses

CWE-79

Coverage 1

threat-intel

Suspected China-Aligned Hackers Exploit Roundcube Flaws Against Universities

A China-aligned threat actor cluster, tracked as UNC5174 and linked to ShadowPad, has been exploiting vulnerabilities in Roundcube webmail software at U.S. and Canadian universities. The campaign leverages CVE-2024-42009…

The Hacker News · Jul 7, 2026 High

CVE-2024-42009CVE-2025-49113CHUSCAroundcubexsscve-2024-42009

All articles mentioning it

Advisories and references

• github.com/roundcube/roundcubemail/releases
• sonarsource.com/blog/government-emails-at-risk-critical-cross-site-s...
• github.com/roundcube/roundcubemail/releases/tag/1.5.8
• github.com/roundcube/roundcubemail/releases/tag/1.6.8
• roundcube.net/news/2024/08/04/security-updates-1.6.8-and-1.5.8
• cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-...