CVE-2026-96765
HighCVSS 7.2Exploitation Probability (EPSS)
Low risk23th percentile - higher than 23% of all known CVEs
Summary
The WPO365 | SEAMLESS WORDPRESS + MICROSOFT INTEGRATION (WPO365 | LOGIN) plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'id_token' parameter in all versions up to and including 44.1 due to insufficient input sanitization and output escaping. Unauthenticated attackers can inject scripts that execute when an administrator visits the WPO365 wizard page, with the payload stored in the wpo365_errors transient for up to three days.
Risk Assessment
The attack can lead to administrator session hijacking, data theft, or malware installation in the WordPress admin context.
Recommendation
Update the plugin to the latest patched version. Restrict access to the WPO365 wizard page and monitor logs for suspicious requests.
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Original NVD description (English source)
The WPO365 | SEAMLESS WORDPRESS + MICROSOFT INTEGRATION (WPO365 | LOGIN) plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'id_token' parameter in all versions up to, and including, 44.1 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The payload is stored in the wpo365_errors transient for up to three days by submitting a crafted unauthenticated request with a forged id_token whose base64url-decoded unique_name or iss claim contains malicious HTML, requiring no prior authentication or user interaction beyond an administrator later visiting the WPO365 wizard page.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS