Blog Filter <= 1.5.3 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode

6.4
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE CVE-2023-5291
CVSS 6.4 (Medium)
Publicly Published October 3, 2023
Last Updated October 4, 2023
Researcher István Márton - Wordfence

Description

The Blog Filter plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'AWL-BlogFilter' shortcode in versions up to, and including, 1.5.3 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers with contributor-level and above permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Wordfence blocked 1,250 attacks targeting this vulnerability in the past 24 hours.

References

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Vulnerability Details for Blog Filter – Advanced Post Filtering with Categories Or Tags, Post Portfolio Gallery, Blog Design Template, Blog Post Layout

Software Type Plugin
Software Slug blog-filter (view on wordpress.org)
Patched? Yes
Remediation Update to version 1.5.4, or a newer patched version
Affected Version
  • <= 1.5.3
Patched Version
  • 1.5.4

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