Joomla Extension - svenbluege.de - Server-side request forgery in the Google Photos picker in Event Gallery extension < 6.6.0 - The Google Photos picker of the back-end upload page fetches the thumbnails of the picked images through the server, with the OAuth access token of the Google Photos account. The task took the address to fetch from the request without checking it and asked for no form token. A prepared page on another web site could therefore make the server send the access token of the account to any address, or fetch addresses inside the server's network, in the name of a logged in administrator; a back-end user with the permission "Manage" could do the same directly. The token is valid for about an hour and reaches what the picker session of the account reaches.

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References
History

Mon, 05 Oct 2026 17:45:00 +0000

Type Values Removed Values Added
First Time appeared Svenbluege.de
Svenbluege.de event Gallery For Joomla
Vendors & Products Svenbluege.de
Svenbluege.de event Gallery For Joomla

Mon, 05 Oct 2026 16:45:00 +0000

Type Values Removed Values Added
Description Joomla Extension - svenbluege.de - Server-side request forgery in the Google Photos picker in Event Gallery extension < 6.6.0 - The Google Photos picker of the back-end upload page fetches the thumbnails of the picked images through the server, with the OAuth access token of the Google Photos account. The task took the address to fetch from the request without checking it and asked for no form token. A prepared page on another web site could therefore make the server send the access token of the account to any address, or fetch addresses inside the server's network, in the name of a logged in administrator; a back-end user with the permission "Manage" could do the same directly. The token is valid for about an hour and reaches what the picker session of the account reaches.
Title Joomla Extension - svenbluege.de - Server-side request forgery in the Google Photos picker in Event Gallery extension < 6.6.0
Weaknesses CWE-918
References
Metrics cvssV4_0

{'score': 6.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:H/SI:L/SA:L'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: Joomla

Published:

Updated: 2026-10-05T16:11:44.089Z

Reserved: 2026-09-29T16:46:15.044Z

Link: CVE-2026-102777

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-05T17:17:09.753

Modified: 2026-10-05T17:17:09.753

Link: CVE-2026-102777

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-05T17:30:10Z

Weaknesses