What’s Vulnerable › Vulnerabilities

CVE-2025-11827: Oboxmedia Ads <= 1.9.8 - Authenticated (Contributor+) Stored Cross-Site Scripting

• Severity: medium (CVSS 6.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-10-22 · updated 2026-10-08
• Weakness: CWE-79

Description

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.

Affected products

• oboxgroup Oboxmedia Ads: through 1.9.8

References

• https://plugins.trac.wordpress.org/browser/oboxmedia-ads/tags/1.9.8/includes/oboxads-ad-widget.php#L156
• https://wordpress.org/plugins/oboxmedia-ads
• https://www.wordfence.com/threat-intel/vulnerabilities/id/1d8b79cc-287e-420b-8eb8-6345a62e9fb9?source=cve

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