What is CVE-2025-11827?

CVE-2025-11827 is a medium-severity vulnerability in Oboxgroup Oboxmedia Ads, classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2025-10-22.

How severe is CVE-2025-11827?

Medium severity. CVSS v3 base score is 6.4 out of 10.

XSS in Oboxgroup Oboxmedia Ads

CVE-2025-11827

The Oboxmedia Ads plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'before_widget' and 'after_widget' parameters of the oboxads-ad-widget shortcode in all versions up to, and including, 1.9.8. This is due to insufficient input sanitization and output escaping. 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.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.002 (12.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N.

Affected products

Oboxgroup Oboxmedia Ads — versions 0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

Frequently asked questions

What is CVE-2025-11827?: CVE-2025-11827 is a medium-severity vulnerability in Oboxgroup Oboxmedia Ads, classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2025-10-22.
How severe is CVE-2025-11827?: Medium severity. CVSS v3 base score is 6.4 out of 10.