CVE-2026-114728 (GCVE-0-2026-114728)

Vulnerability from cvelistv5 – Published: 2026-10-22 02:02 – Updated: 2026-10-22 02:02
VLAI
Summary
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.
Severity
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CWE
  • CWE-184 - Incomplete List of Disallowed Inputs
Assigner
mitre CNA under the mitre root
CNA scorecard E 29/100 over 2361 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Roundcube Webmail Affected: 1.6.0 , < 1.6.20 (semver)
Affected: 1.7.0 , < 1.7.5 (semver)
    cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:*
    cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:*
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    "dateReserved": "2026-10-22T02:02:48.956Z",
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          }
        ],
        "id": "CVE-2026-114728",
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}



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