CVE-2026-77989 - Vulnerability Details - OpenCVE

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.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction Passive

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

No data.

No data.

No data.

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://www.joomlaeventmanager.net/

History

Thu, 27 Aug 2026 06:15:00 +0000

Type	Values Removed	Values Added
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.
Title		Joomla Extension - joomlaeventmanager.net - Reflected XSS via the PDF export link in Joomla Events Manager < 5.0.1
Weaknesses		CWE-79
References		https://www.joomlaeventmanager.net/
Metrics		cvssV4_0 `{'score': 5.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N'}`

Projects

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MITRE

Status: PUBLISHED

Assigner: Joomla

Published: 2026-08-27T05:43:56.550Z

Updated: 2026-08-27T05:43:56.550Z

Reserved: 2026-08-21T19:05:09.012Z

Link: CVE-2026-77989

Vulnrichment

No data.

NVD

Status : Received

Published: 2026-08-27T06:17:28.413

Modified: 2026-08-27T06:17:28.413

Link: CVE-2026-77989

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-79

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