What’s Vulnerable › Vulnerabilities

CVE-2020-18671

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-06-24 · updated 2026-06-17
• Weakness: CWE-79

Description

Cross Site Scripting (XSS) vulnerability in Roundcube Mail <=1.4.4 via smtp config in /installer/test.php.

Affected products

• Roundcube Webmail: through 1.4.4

References

• https://github.com/roundcube/roundcubemail/issues/7406
• https://lorexxar.cn/2020/06/10/roundcube-mail-xss/#store-xss-in-smtp-config
• https://roundcube.net/news/2020/06/02/security-updates-1.4.5-and-1.3.12
• https://github.com/roundcube/roundcubemail/issues/7406
• https://lorexxar.cn/2020/06/10/roundcube-mail-xss/#store-xss-in-smtp-config
• https://roundcube.net/news/2020/06/02/security-updates-1.4.5-and-1.3.12

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