vulnerability
WordPress Plugin: blocksy-companion: CVE-2023-23898: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:N/AC:H/Au:S/C:P/I:P/A:P) | Jan 27, 2023 | May 15, 2025 | May 15, 2025 |
Severity
5
CVSS
(AV:N/AC:H/Au:S/C:P/I:P/A:P)
Published
Jan 27, 2023
Added
May 15, 2025
Modified
May 15, 2025
Description
The Blocksy Companion plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's blocksy_posts
shortcode in versions up to, and including, 1.8.67 due to insufficient input sanitization and output escaping on user supplied 'class' attribute. 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.
shortcode in versions up to, and including, 1.8.67 due to insufficient input sanitization and output escaping on user supplied 'class' attribute. 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.
Solution
blocksy-companion-plugin-cve-2023-23898
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