CVE-2026-101127
Joomla Extension - balbooa.com - Unauthenticated upload filename stored XSS in Balbooa Forms < 2.4.3.4
balbooa.com Balbooa Forms extension for JoomlaApplications & CMS
CVSS
8.6HighExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.33%Chance of exploitation activity in the next 30 days, higher than 24% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version yet
What fixes it
No source in this snapshot names a fixed version.
Description
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.
Text from CVE List
Affected versions 1
- Balbooa Forms extension for Joomlaaffected: 1.0.0-2.4.3.3CVE List