Dashboard / CVE-2026-62643

CVE-2026-62643

CRITICAL
INFO Priority: 0.02 BB Relevance: 80/100
Published: 2026-07-14 Modified: 2026-10-24 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction Conf. Impact Integ. Impact Scope Change

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: None
S: Changed
C: High
I: High
A: None

Description

In Roundcube Webmail before 1.6.17 and 1.7.x before 1.7.2, insufficient Cascading Style Sheets (CSS) sanitization in HTML e-mail messages may lead to SSRF or Information Disclosure, e.g., if stylesheet links point to local network hosts. NOTE: this issue exists because of insufficient fixes for CVE-2026-35540 and CVE-2026-48843.

Weakness Classification (1)

Affected Software (2)

VendorProductVersion
roundcube webmail 1.6.0 – 1.6.17
roundcube webmail 1.7.0 – 1.7.2

References & Advisories (5)

Bug Bounty Relevance

80 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

10.0 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N

EPSS — Exploitation Probability

0.25%
Raw Score 0.002460
Percentile 15.9%
Date 2026-10-28

Intelligence Sources

nvd ref →

External Links