Block Editor Gallery Slider: A security weakness
Block Editor Gallery Slider is affected by a security weakness. Exploitation requires at least subscriber-level access. The resulting impact depends on how the affected component exposes the vulnerable operation.
- Component
- Block Editor Gallery Slider
- Plugin slug
block-editor-gallery-slider- Affected
- See vendor advisory
- Safe version
- See mitigation notes
- Published
- Jul 18, 2025
- Weakness
- CWE-862 — Missing Authorization
This CVE was published Jul 18, 2025 and is one of 1 known issue for this plugin.
Update, patch or deactivate.
Update Block Editor Gallery Slider to a release outside the affected range, or disable and remove it until a fixed version is available.
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.
Technical description
The Block Editor Gallery Slider plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the classic_gallery_slider_options() function in all versions up to, and including, 1.1.1. This makes it possible for authenticated attackers, with Subscriber-level access and above, to update limited post meta for arbitrary posts.
CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N