---
id: CVE-2026-78738
title: >-
  Silverpeas Core 6.4.6 is vulnerable to Cross Site Scripting (XSS) via the
  Document management file upload feature.
summary: >-
  Silverpeas Core 6.4.6 is vulnerable to Cross Site Scripting (XSS) via the
  Document management file upload feature.
severity: medium
cvss: 6.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N'
cwe:
  - CWE-79
published: '2026-09-08'
updated: '2026-09-09'
sourceUpdated: '2026-09-09T20:20:42.227'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-78738'
references:
  - url: 'https://hekk.one/posts/research/cve-2026-78738/'
    label: cve@mitre.org
  - url: 'https://hekk.one/posts/research/cve-2026-78738/'
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
  - cve.org
  - exploit-available
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-09T18:39:50.411594Z'
epss: 0.00253
epssPercentile: 0.14988
ingestedAt: '2026-09-08T21:11:12.368Z'
---

## Overview

Silverpeas Core 6.4.6 is vulnerable to Cross Site Scripting (XSS) via the Document management file upload feature.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.