CVE-2026-26079

MEDIUM EPSS 20.8%
Published Feb 11, 20264mo ago · Modified Apr 15, 20262mo ago
4.7 CVSS 3.1
Medium
Find Similar
Published Feb 11, 2026 4mo ago
Last Modified Apr 15, 2026 2mo ago

Description

Roundcube Webmail before 1.5.13 and 1.6 before 1.6.13 allows Cascading Style Sheets (CSS) injection, e.g., because comments are mishandled.

CVSS Details

Base Score
4.7
Exploitability
2.8
Impact
1.4
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Changed
Confidentiality Low
Integrity None
Availability None

Threat Intelligence

EPSS Exploit Probability
20.8% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-829

References 9

  • github.com https://github.com/roundcube/roundcubemail/commit/1f4c3a5af5033747f9685a8a395dbd8228d19816
  • github.com https://github.com/roundcube/roundcubemail/commit/2b5625f1d2ef7e050fd1ae481b2a52dc35466447
  • github.com https://github.com/roundcube/roundcubemail/commit/53d75d5dfebef235a344d476b900c20c12d52b01
  • github.com https://github.com/roundcube/roundcubemail/commit/5a3315cce587e0be58335d11ff9a5571c90494a5
  • github.com https://github.com/roundcube/roundcubemail/commit/bf89cbaa5897d8ad62e8057d9a3f6babb90b7954
  • github.com https://github.com/roundcube/roundcubemail/commit/c15f5dbf093a497e19a749b20e7f8fb5a9c24cde
  • github.com https://github.com/roundcube/roundcubemail/releases/tag/1.5.13
  • github.com https://github.com/roundcube/roundcubemail/releases/tag/1.6.13
  • roundcube.net https://roundcube.net/news/2026/02/08/security-updates-1.6.13-and-1.5.13

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.