CVE-2026-107759 WPO365 MICROSOFT 365 GRAPH MAILER - Stored XSS

WPO365 MICROSOFT 365 GRAPH MAILER plugin for WordPress <= 6.2 contains a stored XSS caused by insufficient input sanitization and output escaping in the 'Subject' parameter, letting unauthenticated attackers inject scripts executed on user page access, exploit requires mail-sending feature with incomplete OAuth authorization.

CVSS base score 7.2 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.27% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Stored XSS
Impact
Stored XSS, Client Script Exec
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Published
31 October 2026
Updated
1 November 2026
Weakness
CWE-79

Vendor fix

Update to the latest version beyond 6.2.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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