Skip to main content
VulnerabilityPublished

CVE-2026-124492: JiHong88 suneditor · Cross-site Scripting

Affects JiHong88 suneditorSource CVE Database V5

0
Compare

Not known to be exploited · CVSS 8.3 High : upgrade to 3.4.0 soon.

Data as of 8 Nov 2026, 13:35 UTC

CVSS 4.0 base score
8.3High
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (VulnCheck)CVSS 4.08.3
CNA (VulnCheck)CVSS 3.17.6
Patch
Available – fixed in 3.4.0
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

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 8 Nov 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 8 Nov 2026.

What to do

Upgrade JiHong88 suneditor to 3.4.0.

Affected software

ProductAffectedFixed in
JiHong88suneditorAffected
  • <3.4.0
Fixed in
  • 3.4.0

AI-suggested

Upgrade SunEditor to version 3.4.0 or later, where this stored cross-site scripting vulnerability is fixed. No other mitigation is required as the fix addresses the root cause by properly escaping inserted content.

Description

SunEditor versions before 3.4.0 have a stored cross-site scripting (XSS) vulnerability in the ModalAnchorEditor's #createBookmarkList function. This flaw arises because entity-decoded header text (h1-h6) is inserted into the bookmark list using innerHTML without proper escaping. An attacker can store malicious HTML-encoded payloads in editor headers that execute JavaScript when a user opens the link modal and types # in the URL input. The vulnerability is fixed in version 3.4.0.

References

Community reviews

Loading reviews…