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webmail

Vendor: roundcube

Actively Exploited 11 CISA KEV List
PoC / Exploits 15 Code Available
Total RCEs 7 Remote Access
Total CVEs 551 Total Indexed
Avg. EPSS 11.66% Exploit Prob.
Latest CVE CVE-2026-54433 Jul 14

Security Vulnerability Index

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4.3 CVSS

Cross-site scripting (XSS) vulnerability in RoundCube Webmail (roundcubemail) 0.2 stable allows remote attackers to inject arbitrary web script or HTML via the background attribute embedded in an HTML e-mail message.

EPSS: 1.98%
7.8 CVSS

RoundCube Webmail (roundcubemail) before 0.2-beta allows remote attackers to cause a denial of service (memory consumption) via crafted size parameters that are used to create a large quota image.

EPSS: 2.58%
10.0 CVSS
CVE-2008-5619
RCE Exploit Found

html2text.php in Chuggnutt HTML to Text Converter, as used in PHPMailer before 5.2.10, RoundCube Webmail (roundcubemail) 0.2-1.alpha and 0.2-3.beta, Mahara, and AtMail Open 1.03, allows remote attackers to execute arbitrary code via crafted input that is processed by the preg_replace function with the eval switch.

EPSS: 58.64%
4.3 CVSS
CVE-2007-6321
Exploit Found

Cross-site scripting (XSS) vulnerability in RoundCube webmail 0.1rc2, 2007-12-09, and earlier versions, when using Internet Explorer, allows remote attackers to inject arbitrary web script or HTML via style sheets containing expression commands.

EPSS: 5.44%
5.0 CVSS

roundcube webmail Alpha, with a default high verbose level ($rcmail_config['debug_level'] = 1), allows remote attackers to obtain the full path of the application via an invalid_task parameter, which leaks the path in an error message.

EPSS: 1.41%