Patch Forecast
Amber warning
Patch this week.

CVE-2026-102147

Accellion Kiteworks: cross-site scripting

Risk score
68/100
CVSS
9.3 v3.1
Exploit chance (30 days)
0.5%
Published
30 Sep 2026

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What to know

What it is
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 contr…
Affected
Accellion Kiteworks
Fix
Apply the vendor's security update; see the linked advisory.
Exploitation
No known exploitation

Story map

Story map: Accellion KiteworksTHE FLAWSTHE FIXCVE-2026-102147Cross-site scriptingCVSS 9.3 · EPSS 0%CVE-2026-102115Kiteworks Core did notcorrectly validate a parametersubmitted to the password…CVSS 9.8 · EPSS 1%CVE-2026-102106Authentication bypassCVSS 9.1 · EPSS 1%CVE-2026-102102Server-side request forgerycan lead to informationdisclosureCVSS 9.1 · EPSS 1%Upgrade Accellion Kiteworks9.5.0or later on your release lineWho is exposedAccellion KiteworksAMBER · PATCH THIS WEEKAccellionKiteworksKiteworks Core did notcorrectly validate a parametersubmitted to the passwordreset workflow. Anunauthenticated attacker whoknew the email address of a userwith a locally stored password…Where it standsNo known exploitationCONNECTS TOSame weaknessCross-site scripting (CWE-79)399 other warnings in 30 days →Same productEarlier Accellion Kiteworks warnings57 in the last 90 days →
Story map: the flaws, the fix, how it unfolded and what it connects to. Boxes link to the record or article.

At a glance

Accellion Kiteworks: Amber, patch this week. Kiteworks Core did not correctly validate a parameter submitted to the password reset workflow. An unauthenticated attacker who knew the email address of a user with a locally stored password could potentially reset that account's password without access to the emailed reset link and then authenticate as that user, in…

The flaws

  • CVE-2026-102147: Cross-site scripting (CVSS 9.3 · EPSS 0%)
  • CVE-2026-102115: Kiteworks Core did not correctly validate a parameter submitted to the password reset workflow (CVSS 9.8 · EPSS 1%)
  • CVE-2026-102106: Authentication bypass (CVSS 9.1 · EPSS 1%)
  • CVE-2026-102102: Server-side request forgery can lead to information disclosure (CVSS 9.1 · EPSS 1%)

The fix

Upgrade Accellion Kiteworks: 9.5.0 or later on your release line

Who is exposed: Accellion Kiteworks

Where it stands

  • No known exploitation

Connects to

Why it is Amber

  • CVSS 9.3 critical
  • Remotely exploitable without logging in

References

Original description

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.

Last activity 30 Sep 2026. Patch Forecast updates every hour.