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Critical 9.3Published Sep 30, 2026

CVE-2026-102147Kiteworks Core Administrative Account Takeover through Stored Cross-site Scripting (XSS)

Updated under an hour ago ()

Does this affect you?

It affects Kiteworks Core and 1 other product. Add what you run to find out whether that includes you.

EPSS puts the chance of exploitation in the next 30 days at 0.45%, higher than 37% of scored CVEs.

A stored cross-site scripting (XSS) weakness in Kiteworks Core could allow an unauthenticated attacker to store crafted content that later executes arbitrary JavaScript in the authenticated session of an administrator who views the affected page. This could have permitted the attacker to gain full administrative control, including the creation of a new administrative account.

CVSS
9.3 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
Weakness (CWE)
CWE-79
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
0.45% (percentile 37)
Assigned by
cisa-cg
NVD analysis
Analyzed
Record last updated
Oct 1, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
Kiteworks Core
kiteworks:core (from the name)
before 9.5.1; 9.5.1 not affected
CNA record
accellion kiteworks
accellion:kiteworks
before 9.5.1
NVD

References

  • vendor-advisory
  • third-party-advisory, broken-link

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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