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Vulnerabilities CVE-2026-7509

CVE-2026-7509

Medium
Open
TLP:CLEAR

KIA Subtitle <= 4.0.1 - [Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')]

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Description

The KIA Subtitle plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's `the-subtitle` shortcode `before` and `after` attributes in all versions up to, and including, 4.0.1. This is due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Details

CVSS Score
6.4
EPSS Score
0.25%

16.6th percentile

CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Confidence
90%
Published
May 22, 2026
Last Modified
May 22, 2026
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