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PatchSiren cyber security CVE debrief

CVE-2026-104684 Envira Gallery CVE debrief

The Envira Gallery WordPress plugin before 1.16.2 does not verify that a user is authorized to read a gallery before rendering it, allowing authors to embed and expose other users' non-public gallery metadata to unauthenticated visitors. This vulnerability can lead to unauthorized access to sensitive information and potential exposure of non-public gallery metadata. Defenders should assess the exposure and potential impact on their systems. The CVE record and NVD entry provide limited information about the vulnerability, and further verification is required to determine the scope of affected systems and potential consequences.

Vendor
Envira Gallery
Product
Envira Gallery WordPress plugin
CVSS
Unknown
CISA KEV
Not listed in stored evidence
Original CVE published
2026-10-11
Original CVE updated
2026-10-11
Advisory published
2026-10-11
Advisory updated
2026-10-11

Who should care

Defenders responsible for WordPress installations using the Envira Gallery plugin should assess exposure and potential impact. They should prioritize verifying exposure of non-public gallery metadata and assessing the impact on their systems. Additionally, defenders should consider updating to version 1.16.2 or later and review compensating controls for exposed systems while remediation is scheduled and verified.

Why it matters

The Envira Gallery WordPress plugin vulnerability allows authors to embed and expose other users' non-public gallery metadata to unauthenticated visitors, potentially leading to unauthorized access to sensitive information. Defenders should prioritize verifying exposure and assessing impact.

  • Potential exposure of non-public gallery metadata to unauthenticated visitors
  • Possible unauthorized access to sensitive information

Technical summary

The Envira Gallery WordPress plugin before 1.16.2 does not verify that a user is authorized to read a gallery before rendering it, allowing authors to embed and expose other users' non-public gallery metadata to unauthenticated visitors. This vulnerability can lead to unauthorized access to sensitive information and potential exposure of non-public gallery metadata. The vulnerability is related to the plugin's inability to properly validate user authorization before rendering galleries.

Defensive priority

Defenders should prioritize verifying exposure of non-public gallery metadata and assessing the impact on their systems.

Recommended defensive actions

  • Verify exposure of non-public gallery metadata in the Envira Gallery WordPress plugin
  • Assess the impact on systems using the plugin
  • Consider updating to version 1.16.2 or later

Evidence notes

The CVE record and NVD entry provide limited information about the vulnerability. Further verification is required to determine the scope of affected systems and potential consequences.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-104684 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-104684

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

  • CVE-2026-104684 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-104684

    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.