---
id: CVE-2026-102778
title: >-
  Joomla Extension - svenbluege.de - Cross-site scripting and open redirect on
  the share mini page in Event Gallery extension < 6.6.0 - The page a shared
  image link opens (the share mini page of the front end) can link the article
  the imag…
summary: >-
  Joomla Extension - svenbluege.de - Cross-site scripting and open redirect on
  the share mini page in Event Gallery extension < 6.6.0 - The page a shared
  image link opens (the share mini page of the front end) can link the article
  the imag…
severity: medium
cvss: 6.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N'
cwe:
  - CWE-352
  - CWE-601
vendor: svenbluege
product: event_gallery
affected:
  - event_gallery < 6.6.0
patched:
  - event_gallery 6.6.0
published: '2026-10-05'
updated: '2026-10-14'
sourceUpdated: '2026-10-14T18:48:30.587'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-102778'
references:
  - url: 'https://www.svenbluege.de/'
    label: security@joomla.org
tags:
  - nvd
  - cve.org
epss: 0.00091
epssPercentile: 0.00473
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-10-05T16:28:08.594258Z'
scores:
  nvd: 6.1
  cna: 5.3
ingestedAt: '2026-10-05T16:25:58.409Z'
---

## Overview

Joomla Extension - svenbluege.de - Cross-site scripting and open redirect on the share mini page in Event Gallery extension < 6.6.0 - The page a shared image link opens (the share mini page of the front end) can link the article the image was shared from when the option "Share article links" is on. It took the address of the article from the shared link and printed it into the page without checking or escaping it; with the link type "Image Page with Redirect" it followed the address at once. A prepared link could therefore run a script in the page, in the session of the visitor who opened it, or send the visitor to another web site. Nothing on the server is changed or read by the server.

## Affected

- `event_gallery < 6.6.0`

## Remediation

Upgrade past the affected range:

- `event_gallery 6.6.0`