CVE-2026-114728

Published: Ott 22, 2026 Last Modified: Ott 22, 2026
ExploitDB:
Other exploit source:
Google Dorks:
MEDIUM 5,3
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Scope: unchanged
Confidentiality: low
Integrity: none
Availability: none

Description

AI Translation Available

Roundcube Webmail before 1.6.20 and 1.7.x before 1.7.5 is affected by a remote content blocking bypass in the handling of FuncIRI attributes. rcube_washtml detected the CSS url() token with a pattern that enumerated only some of its escaped spellings, so values using other CSS escape sequences, for example \000075rl( or u\72 l(, were not recognized and remote content was loaded from an HTML message without the user's consent. Upstream fixed this in the commit “Fix remote content blocking bypass via CSS escapes in FuncIRI attributes (again)”, which resolves CSS escapes before matching and also inspects the `to`, `from` and `by` attributes.

184

Incomplete List of Disallowed Inputs

Draft
Common Consequences
Security Scopes Affected:
Access Control
Potential Impacts:
Bypass Protection Mechanism
Applicable Platforms
All platforms may be affected
View CWE Details
https://bugs.debian.org/1151279
https://github.com/roundcube/roundcubemail/commit/2f74267f0e13bed7182b1d2294cc4…
https://github.com/roundcube/roundcubemail/commit/ff4fcfdd2952f9d09947cc9c18137…
https://github.com/roundcube/roundcubemail/releases/tag/1.6.20
https://github.com/roundcube/roundcubemail/releases/tag/1.7.5
https://roundcube.net/news/2026/10/19/security-updates-1.6.20-and-1.7.5