CVE-2026-124492: high-severity vulnerability in JiHong88 suneditor
SunEditor before 3.4.0 Stored XSS via Link Modal Bookmark List
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.3epss 0.2%
SunEditor before 3.4.0 contains a stored cross-site scripting vulnerability in ModalAnchorEditor's #createBookmarkList, which inserts entity-decoded h1-h6 header textContent into the bookmark list via innerHTML without escaping. Attackers can store HTML-encoded payloads in editor headers that execute JavaScript when a victim opens the link modal and types # in the URL input.
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N
Affected products
JiHong88 · suneditorRelated CVEs — JiHong88 suneditor
In the same product, most dangerous first.
CVE-2026-54606HIGHSunEditor: DOM XSS in SunEditor Embed Plugin via External Script Element After Iframe EmbedEPSS 0.6%CVE-2026-59167CRITICALSunEditor: Critical XSS vulnerability - sanitizer bypassEPSS 0.5%CVE-2026-124494CRITICALSunEditor before 3.4.0 Stored XSS via : Entity Sanitizer BypassEPSS 0.3%CVE-2026-124493CRITICALSunEditor before 3.4.0 Stored XSS via DocumentType Header textContentEPSS 0.3%CVE-2026-124491MEDIUMSunEditor before 3.4.0 Stored XSS via FileUpload Plugin FilenameEPSS 0.2%