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Vulnerabilities

Vulnerability · CVE-2026-102777

Joomla Extension - svenbluege.de - Server-side request forgery in the Google Photos picker in Event Gallery extension < 6.6.0

Published Oct 5, 2026 · catalog updated Oct 14, 2026 · Event Gallery for Joomla

Check if you run it

No confirmed exploitation is on record for CVE-2026-102777. EPSS is 0.27%. Act only if a listed version of Event Gallery for Joomla is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium6.3
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.27%
Remediation
Version ranges on file
Affected products
cpe svenbluege/event gallery · stated Event Gallery for Joomla · vendor svenbluege.de Event Gallery for Joomla

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe svenbluege/event galleryversion unspecified
  • stated Event Gallery for Joomla< 6.6.0
  • vendor svenbluege.de Event Gallery for Joomlaversion unspecified

How to fix CVE-2026-102777

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-102777. EPSS is 0.27%. Act only if a listed version of Event Gallery for Joomla is installed.

Which versions are affected?

Compare what you have installed with Event Gallery for Joomla < 6.6.0. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-918: Server-Side Request Forgery (SSRF). EPSS 0.27%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Oct 5, 2026 · NIST NVD

    Detected

    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 tok

  2. Oct 14, 2026 · NIST NVD

    Updated

    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 tok

Sources

  • CIRCL Vulnerability LookupVulnerability recordCVE-2026-102777

    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

    vulnerability.circl.lu
  • CVE.orgVulnerability recordCVE-2026-102777

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-102777

    30-day exploitation probability 0.3%

    first.org
  • NIST NVDVulnerability recordCVE-2026-102777

    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

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.