CVE-2026-107759 (GCVE-0-2026-107759)

Vulnerability from cvelistv5 – Published: 2026-10-31 07:46 – Updated: 2026-11-01 17:44
VLAI
Title
WPO365 | MICROSOFT 365 GRAPH MAILER <= 6.2 - Unauthenticated Stored Cross-Site Scripting via Email Subject via wp_mail
Summary
The WPO365 | MICROSOFT 365 GRAPH MAILER plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'Subject (via wp_mail/PHPMailer, e.g. CF7 your-subject)' parameter in all versions up to, and including, 6.2 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 without authentication via any mail-sending feature that forwards a submitter-controlled subject (e.g. a Contact Form 7 form) when the Graph Mailer is enabled but OAuth authorization has not been completed, a default state immediately after plugin activation.
Severity
7.2 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-01 17:34 UTC
CWE
  • CWE-79 - Improper Neutralization of Input During Web Page Generation
Assigner
Wordfence CNA under the mitre root
CNA scorecard C 65/100 over 2374 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
wpo365 WPO365 | MICROSOFT 365 GRAPH MAILER Affected: 0 , ≤ 6.2 (semver)
guessed Create a notification for this product.
Credits
Nick Verhelle (Bulldawg)
Show details on NVD website
To clipboard 

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