CVE-2026-7509

MEDIUM 6.4

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

CVSS Score

6.4

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-79
Vendor	helgatheviking
Product	kia subtitle
Published	May 22, 2026
Last Updated	May 22, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

helgatheviking / KIA Subtitle

0 ≤ 4.0.1

References

NVD ↗ CVE.org ↗ EPSS Data ↗

Credits

Djaidja Moundjid