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SimpLy Gallery vulnerabilities
SimpLy Gallery has 3 known vulnerabilities in this database. The most recent published record is dated 11 Jul 2026.
- Known vulnerabilities
- 3
- Active installs
- 40,000+
- Latest version
- 3.4.3
- Last updated
- 29 Sep 2026
- Most recent
- 11 Jul 2026
Find it in your WordPress dashboard under Plugins. Severity is based on the CVSS score published with the CVE where one is available.
| Vulnerability | Severity | Affected | Fix | Published |
|---|---|---|---|---|
| Cross-site scripting (XSS) CVE-2026-5743 | Medium 6.4 | Up to 3.3.3.2 | Fixed in a later version (latest 3.4.3) | 11 Jul 2026 |
| Broken access control CVE-2025-14288 | Medium 4.3 | Up to 3.3.0 | Fixed in a later version (latest 3.4.3) | 13 Dec 2025 |
| Cross-site scripting (XSS) CVE-2024-5424 | Medium 6.4 | Up to 3.2.1 | Fixed in a later version (latest 3.4.3) | 28 Jun 2024 |
Read the published descriptions
- CVE-2026-5743, 11 Jul 2026
- The SimpLy Gallery Block & Lightbox plugin for WordPress is vulnerable to Stored Cross-Site Scripting via block attributes in all versions up to, and including, 3.3.3.2. This is due to insufficient input sanitization and output escaping on the sliderMaxHeight block attribute in the pgc_sgb_render_callback() function. The vulnerability exists because the pgc_sgb_sanitize_custom_css() function uses a flawed regex pattern that only removes event handlers with quoted values (e.g., onfocus="alert()") but fails to catch unquoted event handlers (e.g., onfocus=alert(document.cookie)), allowing the malicious code to bypass sanitization. This makes it possible for authenticated attackers, with Author-level access and above, to inject arbitrary web scripts in pages via block attributes that will execute whenever a user accesses an injected page. CVE record
- CVE-2025-14288, 13 Dec 2025
- The Gallery Blocks with Lightbox. Image Gallery, (HTML5 video , YouTube, Vimeo) Video Gallery and Lightbox for native gallery plugin for WordPress is vulnerable to unauthorized modification of plugin settings in all versions up to, and including, 3.3.0. This is due to the plugin using the `edit_posts` capability check instead of `manage_options` for the `update_option` action type in the `pgc_sgb_action_wizard` AJAX handler. This makes it possible for authenticated attackers, with Contributor-level access and above, to modify arbitrary plugin settings prefixed with `pgc_sgb_*`. CVE record
- CVE-2024-5424, 28 Jun 2024
- The Gallery Blocks with Lightbox. Image Gallery, (HTML5 video , YouTube, Vimeo) Video Gallery and Lightbox for native gallery plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘galleryID’ and 'className' parameters in all versions up to, and including, 3.2.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. CVE record
What to do if you run SimpLy Gallery
If you run SimpLy Gallery, open WordPress and check the installed version in Plugins. Compare it with the affected versions in the vulnerability record. If a fixed version is available, take a current backup and update to that version or the latest supported release.
If no fixed version exists, consider disabling and removing the plugin or replacing it with a maintained alternative. After dealing with the affected software, check administrator users, unexpected file changes, redirects, unfamiliar pages and security logs for signs that the site may already have been altered.
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