CVE-2026-5711

MEDIUM

Post Blocks & Tools <= 1.3.0 - Authenticated (Author+) Stored Cross-Site Scripting via 'sliderStyle' Block Attribute

Title source: cna
STIX 2.1

Description

The Post Blocks & Tools plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'sliderStyle' block attribute in the Posts Slider block in all versions up to, and including, 1.3.0 due to insufficient input sanitization and output escaping on user supplied attributes. 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.

References (5)

Core 5

Scores

CVSS v3 6.4
EPSS 0.0019
EPSS Percentile 8.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-79
Status published
Products (1)
pubudu-malalasekara/Post Blocks & Tools < 1.3.0
Published Apr 08, 2026
Tracked Since Apr 09, 2026