Medium severity6.4NVD Advisory· Published Feb 6, 2026· Updated Apr 15, 2026

CVE-2026-1909

Description

The WaveSurfer-WP plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's audio shortcode in all versions up to, and including, 2.8.3 due to insufficient input sanitization and output escaping on the 'src' attribute. 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.

Affected products

Kth/Wavesurferllm-fuzzy
Range: <=2.8.3

Patches

No patches discovered yet.

Vulnerability mechanics

AI mechanics synthesis has not run for this CVE yet.

References

plugins.trac.wordpress.org/browser/wavesurfer-wp/tags/2.8.3/wavesurfer-wp.phpnvd
plugins.trac.wordpress.org/browser/wavesurfer-wp/trunk/wavesurfer-wp.phpnvd
plugins.trac.wordpress.org/changesetnvd
www.wordfence.com/threat-intel/vulnerabilities/id/b507462d-1ce2-4463-93bf-635ee78274f6nvd

News mentions

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cvss	0.416
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000