CVE-2023-5631
CVSS v3
5.4
MEDIUM
EPSS Score
85.2 %
exploit probability
CISA KEV
Yes
known exploited
Exploitation
—
SSVC status
Description
Roundcube before 1.4.15, 1.5.x before 1.5.5, and 1.6.x before 1.6.4 allows stored XSS via an HTML e-mail message with a crafted SVG document because of program/lib/Roundcube/rcube_washtml.php behavior. This could allow a remote attacker to load arbitrary JavaScript code.
CISA Known Exploited Vulnerability
- Date Added
- 2023-10-26
- Patch Due Date
- 2023-11-16
- Ransomware Use
- Unknown
Technical details
- Published
- 2023-10-18
Frequently asked questions
What is CVE-2023-5631?
Roundcube before 1.4.15, 1.5.x before 1.5.5, and 1.6.x before 1.6.4 allows stored XSS via an HTML e-mail message with a crafted SVG document because of program/lib/Roundcube/rcube_washtml.php behavior. This could allow a remote attacker to load arbitrary JavaScript code.
Is CVE-2023-5631 actively exploited?
Yes. CVE-2023-5631 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 2023-11-16.
What is the CVSS score for CVE-2023-5631?
CVE-2023-5631 has a CVSS v3 base score of 5.4 (MEDIUM severity).
Is CVE-2023-5631 affecting your environment?
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