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TI-2026-73474 Aliases CVE-2026-63147GHSA-p4qp-qp77-4vr9

Stored cross-site scripting in Omnispace Agora Project via file names

Priority LOW 23CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
Passive
Attack complexity
Low
Attack requirements
None
Impact type
Cross-site scripting
Confidentiality · integrity · availability
None · None · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

Omnispace Agora Project before 26.10.0 contains a stored cross-site scripting flaw in how uploaded file names are handled. The paramFilter does not sanitize names that arrive through the file upload array, so HTML or script markup in a file name is stored unescaped (CWE-79). An authenticated user with low privileges can upload a file with a crafted name, and the script runs in the browsers of other users when the name is later rendered to them.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00209 11th percentileScored 2026-11-07
Fix Fixed Agora Project (Omnispace): 26.10.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
OmnispaceAgora Projectbefore 26.10.026.10.0Patch availableCNA
  • Agora Project VendorOmnispace Affected before 26.10.0 Fixed in 26.10.0 Patch available CNA

Remediation

Upgrade Omnispace Agora Project to version 26.10.0 or later, which fixes the issue.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

  • Fix · CNA Agora Project (Omnispace) Fixed in 26.10.0

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Omnispace Agora Project 26.10.0

    21 records Highest priority Priority MEDIUM 7 MEDIUM, 14 LOW

    Other records, highest priority first

    • TI-2026-73473 PHP code injection in Omnispace Agora Project configuration filePriority MEDIUM 49
    • TI-2026-73487 Broken access control in Omnispace Agora Project lets attackers download filesPriority MEDIUM 44
    • TI-2026-73486 Path traversal in Omnispace Agora Project lets attackers write filesPriority MEDIUM 41
    Show all 21 records →

Timeline

  1. 2026-10-13 Threatist record created from CVE-2026-63147
  2. 2026-10-13 Alias added: GHSA-p4qp-qp77-4vr9
  3. 2026-10-18 CISA SSVC decision points changed

References

Patch 1

Other 1

  • TI-2026-73473 PHP code injection in Omnispace Agora Project configuration file CVSS 4.0CRITICAL 9.3
  • TI-2026-73487 Broken access control in Omnispace Agora Project lets attackers download files CVSS 4.0HIGH 8.7
  • TI-2026-73486 Path traversal in Omnispace Agora Project lets attackers write files CVSS 4.0HIGH 8.7
  • TI-2026-73484 Omnispace Agora Project stores remember-me tokens in plaintext CVSS 4.0CRITICAL 9.1
  • TI-2026-73483 Predictable password-reset token in Omnispace Agora enables takeover CVSS 4.0CRITICAL 9.1
  • TI-2026-73476 Predictable default passwords in Omnispace Agora Project allow account takeover CVSS 4.0CRITICAL 9.1
See all 20 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences