CVE Watch—

CVE-2023-43770

Roundcube Webmail Persistent Cross-Site Scripting (XSS) Vulnerability

CVSS

—

No CVSS

EPSS

58.5%

p99

KEV

YES

Feb 12, 2024

Exploit Today

0-100

Published: — · Last modified: —

EPSS · 30d

58.5%EPSS · 30 days58.5%

2026-06-302026-07-16

KEV catalog record

Product

Roundcube / Webmail

Vulnerability

Roundcube Webmail Persistent Cross-Site Scripting (XSS) Vulnerability

Added to KEV

Feb 12, 2024

Remediate by

Mar 4, 2024

Known ransomware use

Summary description

Roundcube Webmail contains a persistent cross-site scripting (XSS) vulnerability that can lead to information disclosure via malicious link references in plain/text messages.

Required action

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Notes

https://roundcube.net/news/2023/09/15/security-update-1.6.3-released ; https://nvd.nist.gov/vuln/detail/CVE-2023-43770

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