CVE-2026-104079: Envira Gallery Lite < 1.16.2 Missing Authorization via Gallery Conversion REST Endpoint

Severity: medium (CVSS 4.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-10-09 · updated 2026-10-27
Weakness: CWE-862

Description

Envira Gallery Lite before 1.16.2 contains a missing authorization vulnerability in its gallery conversion REST endpoint that allows lower-privileged authenticated users to create and publish Envira galleries without the required capabilities, because the endpoint only checks edit permissions on the source post and uses a hard-coded publish status. Attackers can also supply arbitrary caller-controlled image IDs without ownership verification to publish unauthorized content using attachments they are not authorized to use.

Affected products

Syed Balkhi Envira Gallery: before 1.16.2 — fixed in 1.16.2

How to fix

Upgrade to a fixed version: Syed Balkhi Envira Gallery 1.16.2. Check the vendor advisory for mitigations.

References

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