XSS in Vberkel Schema App Structured Data

CVE-2024-11279

The Schema App Structured Data plugin for WordPress is vulnerable to Reflected Cross-Site Scripting due to the use of add_query_arg without appropriate escaping on the URL in all versions up to, and including, 2.2.4. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.005 (41.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2024-11279?
CVE-2024-11279 is a medium-severity vulnerability in Vberkel Schema App Structured Data, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2024-12-12.
How severe is CVE-2024-11279?
Medium severity. CVSS v3 base score is 6.1 out of 10.
Is CVE-2024-11279 known to be exploited?
2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.