Fullscreen Galleria post links permit Contributor SQL injection

Fullscreen Galleria through 1.6.12 takes the href attribute from Contributor-controlled post content and incorporates it into an SQL query without adequate escaping or preparation. A Contributor can append SQL and extract sensitive database information when the affected gallery-processing path handles that content. The public.

CVE / CNA score 6.5 CVSS 3.1 · security@wordfence.com

NVD score Pending NVD has not published its own CVSS assessment.

Component: Fullscreen Galleria
Plugin slug: fullscreen-galleria
Affected: <= 1.6.12
Safe version: See mitigation notes
Published: Aug 16, 2026
Weakness: CWE-89 — Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

This CVE was published Aug 16, 2026 and is one of 2 known issues for this plugin.

What to do

Update, patch or deactivate.

This archive could not verify a fixed version from the official author release notes reviewed on 2026-10-13. Disable the affected feature or component where practical until remediation for the deployed configuration is established. restrict Contributors or deactivate affected gallery rendering and review content and database logs. Official author release notes: https://wordpress.org/plugins/fullscreen-galleria/.

No confirmed safe version is listed. Consider a vendor-supported patch or temporarily restricting the affected functionality while you assess the risk.

Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.

Source record

Technical description

The Fullscreen Galleria plugin for WordPress is vulnerable to generic SQL Injection via 'href' Attribute in Post Content in all versions up to, and including, 1.6.12 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for authenticated attackers, with contributor-level access and above, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.

CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

References

Primary and upstream sources

Data attribution: This product uses the NVD API but is not endorsed or certified by the NVD.

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