CVE-2026-6972
The SKT Skill Bar plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the `chart_size` attribute of the `skillwrapper` shortcode in all versions up to, and including, 2.6. This is due to insufficient input sanitization and output escaping on the `chart_size` attribute, which is concatenated directly into an inline `<style>` block. 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.
Debolezza
The SKT Skill Bar plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the `chart_size` attribute of the `skillwrapper` shortcode in all versions up to, and including, 2.6. This is due to insufficient input sanitization and output escaping on the `chart_size` attribute, which is concatenated directly into an inline `<style>` block. 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.
Riferimenti
- https://plugins.trac.wordpress.org/browser/skt-skill-bar/tags/2.6/sktskillbar.php#L240
- https://plugins.trac.wordpress.org/browser/skt-skill-bar/tags/2.6/sktskillbar.php#L541
- https://plugins.trac.wordpress.org/browser/skt-skill-bar/tags/2.6/sktskillbar.php#L56
- https://plugins.trac.wordpress.org/browser/skt-skill-bar/trunk/sktskillbar.php#L240
- https://plugins.trac.wordpress.org/changeset?reponame=&new=3565730%40skt-skill-bar%2Ftrunk&old=3565726%40skt-skill-bar%2Ftrunk
- https://www.wordfence.com/threat-intel/vulnerabilities/id/eb689760-837f-45e6-ba51-a834053be6ae?source=cve
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