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PatchSiren cyber security CVE debrief

CVE-2026-100749 svenbluege.de CVE debrief

A Cross-Site Request Forgery (CSRF) vulnerability exists in the Event Gallery extension for Joomla, version prior to 6.5.0. This vulnerability allows an attacker to perform unauthorized actions on behalf of a user in the backend cleanup actions, specifically for orphaned file entries and shopping carts older than 30 days. The vulnerability could lead to potential disruption of backend operations and unauthorized cleanup of files and carts. Evidence limits exist as specific exploitation details are not provided, emphasizing the need for defenders to assess exposure and apply patches. Administrators and security teams managing Joomla sites with the Event Gallery extension should take

Vendor
svenbluege.de
Product
Event Gallery for Joomla
CVSS
MEDIUM 5.1
CISA KEV
Not listed in stored evidence
Original CVE published
2026-09-27
Original CVE updated
2026-09-27
Advisory published
2026-09-27
Advisory updated
2026-09-27

Who should care

Defenders responsible for Joomla installations using the Event Gallery extension should assess exposure and apply patches. This includes administrators and security teams managing Joomla sites with the Event Gallery extension.

Why it matters

Defenders should care about CVE-2026-100749 because it involves a CSRF vulnerability in the Event Gallery extension for Joomla, which could lead to unauthorized actions. Relevant roles include administrators and security teams managing Joomla sites with this extension. The supported consequences include potential disruption of backend operations and unauthorized cleanup. Evidence limits exist as specific exploitation details are not provided.

  • Potential unauthorized cleanup of orphaned file entries and shopping carts.
  • Possible disruption of backend operations in Joomla sites using the Event Gallery extension.

Technical summary

The Event Gallery extension for Joomla prior to version 6.5.0 is vulnerable to Cross-Site Request Forgery (CSRF) attacks. This vulnerability allows an attacker to perform unauthorized backend cleanup actions, specifically for orphaned file entries and shopping carts older than 30 days.

Defensive priority

Medium priority for defenders to assess exposure and apply patches, focusing on systems using the Event Gallery extension.

Recommended defensive actions

  • Assess exposure by identifying systems using the Event Gallery extension and checking for updates to version 6.5.0 or later.
  • Apply patches or updates to the Event Gallery extension to mitigate the CSRF vulnerability.
  • Monitor for suspicious backend cleanup actions in the Event Gallery extension.

Evidence notes

The CVE record and NVD entry provide details on the CSRF vulnerability in the Event Gallery extension. However, the corpus lacks specific details on exploitation, impact, or remediation beyond updating to version 6.5.0 or later.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-100749 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-100749

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-100749 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-100749

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.