CVE-2023-43770

CISA KEV
ACT NOW Priority: 0.00 BB Relevance: 10/100
Published: N/A Modified: N/A First seen: 2026-10-29 Status: pending_score

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.

CISA Known Exploited Vulnerability

Vendor / Product Roundcube — Webmail
Date Added 2024-02-12
Remediation Due 2024-03-04
https://roundcube.net/news/2023/09/15/security-update-1.6.3-released ; https://nvd.nist.gov/vuln/detail/CVE-2023-43770

Bug Bounty Relevance

10 / 100
✓ Known exploited (KEV)
✓ High exploitation probability

CVSS Score

Unscored

EPSS — Exploitation Probability

63.66%
Raw Score 0.636600
Percentile 99.2%
Date 2026-10-28

Intelligence Sources

kev ref →