CVE-2023-5631

high-risk
Published 2023-10-18

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.

Do I need to act?

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83.4% chance of exploitation in next 30 days
EPSS score — higher than 17% of all CVEs
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CISA KEV: actively exploited in the wild
On the Known Exploited Vulnerabilities catalog — federal agencies must patch
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
6
CVSS 6.1/10 Medium
NETWORK / LOW complexity

Affected Vendors

References (31)

and 11 more references
62
/ 100
high-risk
Severity 23/34 · High
Exploitability 27/34 · High
Exposure 12/34 · Low