---
id: CVE-2026-63147
title: >-
  Omnispace Agora Project before 26.10.0 contains a stored cross-site scripting
  vulnerability that allows authenticated users to inject malicious script by
  uploading a file with HTML/script markup embedded in its filename, which
  bypasses t…
summary: >-
  Omnispace Agora Project before 26.10.0 contains a stored cross-site scripting
  vulnerability that allows authenticated users to inject malicious script by
  uploading a file with HTML/script markup embedded in its filename, which
  bypasses t…
severity: medium
cvss: 5.4
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N'
cwe:
  - CWE-79
published: '2026-10-13'
updated: '2026-10-13'
sourceUpdated: '2026-10-13T20:17:30.350'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-63147'
references:
  - url: 'https://github.com/xech/agora-project/releases/tag/26.10'
    label: disclosure@vulncheck.com
  - url: 'https://www.agora-project.net/'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/omnispace-agora-project-stored-xss-via-uploaded-file-name
    label: disclosure@vulncheck.com
tags:
  - nvd
ingestedAt: '2026-10-13T20:53:44.640Z'
---

## Overview

Omnispace Agora Project before 26.10.0 contains a stored cross-site scripting vulnerability that allows authenticated users to inject malicious script by uploading a file with HTML/script markup embedded in its filename, which bypasses the paramFilter since uploaded-file names arrive through $_FILES rather than $_GET/$_POST. Attackers can upload a file with a crafted name such as an SVG onload payload to have the unsanitized filename stored and later rendered to other users, resulting in script execution in their browsers.

## Remediation

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