MEDIUMCVSS v3.1 6.5Vulnerability
CVE-2026-114722
Roundcube Webmail before 1.6.20 and 1.7.x before 1.7.5 is affected by a CSS scoping bypass in HTML messages. rcube_utils::mod_css_styles() did not treat an at-rule prologue such as @layer a; as a selector boundary, and did not handle selectors beginning with ::, so selectors following an at-rule were left unscoped and applied to the whole Roundcube interface instead of being confined to the message body. This allows an HTML message to restyle application chrome for UI redressing and spoofing. Upstream fixed this in the commit “Fix CSS scoping bypass in HTML messages using at-rules”.
Properties
- Severity
- MEDIUM
- Nvd fetched at
- 2026-10-22T22:14:18.200859+00:00
- Epss score
- 0.00252
- Cvss severity
- MEDIUM
- Cvss score
- 6.5
- Retrieved at
- 2026-10-22T22:17:33+00:00
- Last source
- FIRST EPSS
- Score
- 6.5
- Cvss version
- 3.1
- Cve id
- CVE-2026-114722
- Cvss vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
- First seen by Signal
- 2026-10-22T06:03:26+00:00
- Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
- Published at
- 2026-10-22T02:17:00.033
- Last modified
- 2026-10-22T16:45:49.550
- Epss percentile
- 0.15756
Related Entities (1)
HAS_WEAKNESS (1)
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