Envira Gallery <= 1.12.4 - Authenticated (Author+) Stored Cross-Site Scripting via 'arrows' Parameter
The Envira Gallery Lite plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the REST API in versions up to and including 1.12.4. This is due to insufficient input sanitization in the update_gallery_data() function and improper output escaping in the gallery_init() function. The sanitize_config_values() function only sanitizes the justified_gallery_theme and justified_row_height parameters, but does not sanitize the arrows parameter. When the arrows value is output in the inline JavaScript configuration, it uses esc_attr() which is designed for HTML attribute contexts, not JavaScript contexts, allowing JavaScript expression injection. This makes it possible for authenticated attackers, with Author-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| WordPress plugin | Envira Gallery – Image Photo Gallery, Albums, Video Gallery, Slideshows & More | <= 1.12.4 | 1.12.5 |
References
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N- Weakness (CWE)
CWE-79- Platform
- WordPress
- Package
Envira Gallery – Image Photo Gallery, Albums, Video Gallery, Slideshows & More- Disclosed
- 13.05.2026
- Updated
- 11.10.2026 10:23
Sources and licenses
Wordfence Intelligence - d2b1e973-f22d-4e69-b3b8-d6ea5df3f047 - Wordfence Intelligence
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Copyright 2012-2026 Defiant Inc.
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Vulnerability history: Envira Gallery – Image Photo Gallery, Albums, Video Gallery, Slideshows & More
All published vulnerabilities of this package (WordPress plugin), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 16
- First → latest
- 02.2020 10.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- Medium 16
Disclosures per year
- 2020: 2
- 2021: 0
- 2022: 1
- 2023: 0
- 2024: 5
- 2025: 2
- 2026: 6
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Envira Gallery <= 1.12.4 - Authenticated (Author+) Stored Cross-Site Scripting via 'arrows' Parameter this entry
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