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OpenAdvisories
Medium · 4.3 CVE-2025-6726 EUVD-2025-21851GHSA-xmhh-mj7p-f593

Block Editor Gallery Slider <= 1.1.1 - Missing Authorization to Authenticated (Subscriber+) Limited Post Meta Update

Published Jul 18, 2025 · Updated Apr 8, 2026 · Assigned by Wordfence

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.

Affected products

VendorProductAffectedFixed
krasenslavov Block Editor Gallery Slider for WordPress – Image Slider, Gallery Carousel & Lightbox Plugin ≤ 1.1.1 —

References