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TI-2026-65139 Aliases CVE-2026-101127GHSA-r586-6h3h-vc7q

Cross-site scripting in Balbooa Forms extension for Joomla

Priority LOW 39CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Active
Attack complexity
Low
Attack requirements
None
Impact type
Cross-site scripting
Confidentiality · integrity · availability
High · High · Low
Fix status
No fix listed

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

Summary

Joomla Extension - balbooa.com - Unauthenticated upload filename stored XSS in Balbooa Forms < 2.4.3.4 - The public form upload endpoint validates the uploaded file's extension and detected MIME type, but stores the attacker-supplied original multipart filename verbatim in `#__baforms_submissions_attachments.name`. A later anonymous form submission associates that temporary attachment with the newly created submission. When an administrator opens the submission, the component's JavaScript retrieves the stored attachment record and concatenates `file.name` directly into an HTML string. The complete string is assigned to `innerHTML`.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0033 26th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

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

Affected products

VendorProductAffected versionsFixed inStatusSource
BalbooaBalbooa Forms extension for Joomla1.0.0-2.4.3.3—No fix listedCNA
  • Balbooa Forms extension for Joomla VendorBalbooa Affected 1.0.0-2.4.3.3 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:balbooa:forms:*:*:*:*:*:joomla\!:*:*before 2.4.3.4VulnerableBalbooa
  • cpe:2.3:a:balbooa:forms:*:*:*:*:*:joomla\!:*:* Versions before 2.4.3.4 Vulnerable ·Balbooa

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-101127
  2. 2026-10-03 Alias added: GHSA-r586-6h3h-vc7q
  3. 2026-10-06 CVSS score added · NVD

References

Other 1

  • TI-2026-40656 Unrestricted file upload in balbooa.com Balbooa Forms extension for Joomla KEVCVSS 4.0CRITICAL 10.0
  • TI-2026-65394 Code injection in Balbooa Forms extension for Joomla CVSS 4.0CRITICAL 9.5
  • TI-2026-65393 Path traversal in Balbooa Forms extension for Joomla CVSS 4.0HIGH 8.9
  • TI-2026-65138 Path traversal in Balbooa Forms extension for Joomla CVSS 4.0MEDIUM 6.9
  • TI-2026-65137 Authorization bypass in Balbooa Forms extension for Joomla CVSS 4.0MEDIUM 6.9

Sources

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