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CVE-2026-59167Proof of concept (PoC) published · CISASuited to automated attack · CISA

SunEditor: Critical XSS vulnerability - sanitizer bypass

CVSS score

10.0

EPSS probability

%0.4

Risk score

0.0

Published

25 d ago

OverviewPublic Exploits (0)NewsroomVulnerability Timeline

Vulnerability Timeline (Change History)

CVE-2026-59167 historical changes made to the vulnerability by NVD, CISA and MITRE:

DateActor / SourceAction / DescriptionTypePrevious valueNew value
24.09.2026nvd@nist.govInitial Analysis & CVSS Vector AssignmentCVSS V3.1—CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
23.09.2026CISA CoordinatorSSVC Risk Re-assessmentSSVC / KEVexploitation: noneexploitation: none
23.09.2026MITRE / NVDNew CVE Record Received & IngestedCVE Created—CVE-2026-59167

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CVE-2026-59167 · SunEditor: Critical XSS vulnerability - sanitizer bypass · DayBreach