SEPTEMBER 19, 2026
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Case File

CVE-2026-74999

MEDIUM · CVSS 5.4 EPSS 0.22% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-08-17 · Last synced 2026-09-16

CyberRota Analysis

AI-Generated

Roundcube Webmail versions prior to 1.6.18 and 1.7.x before 1.7.3 are vulnerable to stored cross-site scripting (XSS) via the "Add to address book" feature, allowing attackers to inject malicious scripts that can execute in the context of other users. This vulnerability poses a medium risk as it could lead to unauthorized access to user data or session hijacking. Organizations using affected versions of Roundcube should prioritize applying the latest updates to mitigate potential exploitation.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-74999
Severity
MEDIUM
CVSS
5.4
EPSS
0.22%

Original NVD Description

In Roundcube Webmail before 1.6.18 and 1.7.x before 1.7.3, the "Add to address book" action was subject to stored XSS.

Related CVEs

Other vulnerabilities affecting the same vendor(s)