CVE-2026-77989: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in joomlaeventmanager.net JEM - Joomla Event Manager extension for Joomla
Joomla Extension - joomlaeventmanager.net - Reflected XSS via the PDF export link in Joomla Events Manager < 5.0.1 - buildCurrentPdfLink copies the current request query string into the PDF button URL, and pdfbutton() echoes it unescaped, leading to an reflected XSS vector.
CVE-2026-77989: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in joomlaeventmanager.net JEM - Joomla Event Manager extension for Joomla
Description
Joomla Extension - joomlaeventmanager.net - Reflected XSS via the PDF export link in Joomla Events Manager < 5.0.1 - buildCurrentPdfLink copies the current request query string into the PDF button URL, and pdfbutton() echoes it unescaped, leading to an reflected XSS vector.
CVSS v4.0
Score 5.3medium
Affected software
Weaknesses
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Joomla
- Date Reserved
- 2026-08-21T19:05:09.012Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a8fd7c3acd9273b49e17812
Added to database: 08/27/2026, 06:22:59 UTC
Last updated: 08/28/2026, 01:59:15 UTC
Views: 18
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