PB oEmbed HTML5 Audio <= 2.6 - Authenticated (Contributor+) Stored Cross-Site Scripting via shortcode

2024-02-1400:00:00

wpscan.com

wordpress

stored cross-site scripting

authentication

input sanitization

output escaping

user permissions

CVSS3

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

LOW

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

AI Score

5.9

Confidence

High

EPSS

Percentile

9.0%

JSON

Description The PB oEmbed HTML5 Audio – with Cache Support plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin’s shortcode(s) in all versions up to, and including, 2.6 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers with contributor-level and above permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.