CVE-2026-1909CWE-79

WaveSurfer-WP <= 2.8.3 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'src' Shortcode Attribute

Medium · published February 6, 2026

CVSS v3.1
6.4
EPSS
0%
Percentile
17.4
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.4 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00265 · 17.4th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-02-06T06:46Z
EPSS history
Timeline
  • 06 FEB 06:46Z
    WaveSurfer-WP <= 2.8.3 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'src' Shortcode Attribute
    cvelistv5