What’s Vulnerable › Vulnerabilities

CVE-2025-6726: Block Editor Gallery Slider <= 1.1.1 - Missing Authorization to Authenticated (Subscriber+) Limited Post Meta Update

• Severity: medium (CVSS 4.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-07-18 · updated 2026-06-17
• Weakness: CWE-862

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

• krasenslavov Block Editor Gallery Slider for WordPress – Image Slider, Gallery Carousel & Lightbox Plugin: through 1.1.1

References

• https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3331844%40block-editor-gallery-slider&new=3331844%40block-editor-gallery-slider&sfp_email=&sfph_mail=
• https://wordpress.org/plugins/block-editor-gallery-slider/
• https://www.wordfence.com/threat-intel/vulnerabilities/id/770b0401-4d05-476e-a2b1-e9e9c920f5fa?source=cve

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