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CVE Vulnerability Details :
CVE-2026-48843
PUBLISHED
More InfoOfficial Page
Assigner-mitre
Assigner Org ID-8254265b-2729-46b6-b9e3-3dfca2d5bfca
View Known Exploited Vulnerability (KEV) details
Published At-25 May, 2026 | 19:11
Updated At-26 May, 2026 | 12:50
Rejected At-
▼CVE Numbering Authority (CNA)

Roundcube Webmail 1.6.x between 1.6.14 and 1.6.16,and 1.7.x before 1.7.1 has 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. The issue stems from an insufficient fix for CVE-2026-35540.

Affected Products
Vendor
Roundcube Webmail ProjectRoundcube
Product
Webmail
Default Status
unaffected
Versions
Affected
  • From 1.6.14 before 1.6.16 (semver)
  • From 1.7.0 before 1.7.1 (semver)
Problem Types
TypeCWE IDDescription
CWECWE-918CWE-918 Server-Side Request Forgery (SSRF)
Type: CWE
CWE ID: CWE-918
Description: CWE-918 Server-Side Request Forgery (SSRF)
Metrics
VersionBase scoreBase severityVector
3.17.2HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Version: 3.1
Base score: 7.2
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://roundcube.net/news/2026/05/24/security-updates-1.6.16-and-1.7.1
N/A
https://github.com/roundcube/roundcubemail/releases/tag/1.7.1
N/A
https://github.com/roundcube/roundcubemail/commit/ab96c88bfd888866ec5e02190b19618db283923a
N/A
https://github.com/roundcube/roundcubemail/releases/tag/1.6.16
N/A
https://github.com/roundcube/roundcubemail/commit/cb3fc9041e91640ba9ba49ee7b2147c176ebf5a1
N/A
Hyperlink: https://roundcube.net/news/2026/05/24/security-updates-1.6.16-and-1.7.1
Resource: N/A
Hyperlink: https://github.com/roundcube/roundcubemail/releases/tag/1.7.1
Resource: N/A
Hyperlink: https://github.com/roundcube/roundcubemail/commit/ab96c88bfd888866ec5e02190b19618db283923a
Resource: N/A
Hyperlink: https://github.com/roundcube/roundcubemail/releases/tag/1.6.16
Resource: N/A
Hyperlink: https://github.com/roundcube/roundcubemail/commit/cb3fc9041e91640ba9ba49ee7b2147c176ebf5a1
Resource: N/A
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Details not found