WPO365 | SEAMLESS WORDPRESS + MICROSOFT INTEGRATION (WPO365 | LOGIN) <= 44.1 — Unauthenticated Stored Cross-Site Scripting via 'id_token' Parameter (iss / unique_name JWT claims)
CVE-2026-96765Published · Updated Action summary
Affected: ≤44.1Update to 45.0 or newer
All remediation steps- Severity
- High7.2
- CVSS
- 7.2CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:NWhat does this vector mean?
AV:NAttack vector- Network
AC:LAttack complexity- Low
PR:NPrivileges required- None
UI:NUser interaction- None
S:CScope- Changed
C:LConfidentiality- Low
I:LIntegrity- Low
A:NAvailability- None
- Weakness
- CWE-79 Cross-Site Scripting
- Required access
- No account needed
- Exploit prediction (EPSS)
- 0.3% chance in 30 days25th percentile
- CISA KEV
- Not listed
On this page8
Am I affected?
WPO365 | SEAMLESS WORDPRESS + MICROSOFT INTEGRATION (WPO365 | LOGIN) wpo365-login
- Affected≤ 44.1
- Patched in45.0
Update to 45.0 or newer.
You are affected if you run ≤ 44.1. Version 45.0 and later are not affected by this issue.
- Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under WPO365 | SEAMLESS WORDPRESS + MICROSOFT INTEGRATION (WPO365 | LOGIN).
- No admin access? Run a passive check of your site. It reads public files only.
- No account is needed to exploit this. Treat any exposed site on an affected version as at risk.
What to do
- Update to version 45.0, or a newer patched version
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch WPO365 | SEAMLESS WORDPRESS + MICROSOFT INTEGRATION (WPO365 | LOGIN) to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence, credited to Sebastian Albrecht (mySebbe).
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.
Exploits & references
Proof-of-concept & detection
No public proof-of-concept or detection template is known for this vulnerability.
Advisories & patches
- Advisorywordfence.com
Related CVEs
More in WPO365 | SEAMLESS WORDPRESS + MICROSOFT INTEGRATION (WPO365 | LOGIN)
All 9| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| Medium6.3 | Authentication Bypass via SAML Relay ≤45.1Update to 45.2 | CVE-2026-122220 | |
| High8.1 | Unauthenticated Authentication Bypass via OIDC Nonce Replay via id_token Nonce Verification ≤44.1Update to 45.0 | CVE-2026-104759 | |
| Medium4.3 | Missing Authorization ≤44.1Update to 45.0 | CVE-2026-102915 | |
| High8.8 | Cross-Site Request Forgery to Privilege Escalation via Plugin Settings Update ≤43.2Update to 43.3 | CVE-2026-15212 | |
| Medium6.4 | Authenticated (Subscriber+) Server-Side Request Forgery ≤40.0Update to 40.1 | CVE-2025-67961 |
- Medium6.3Authentication Bypass via SAML Relay
≤45.1Update to 45.2
- High8.1Unauthenticated Authentication Bypass via OIDC Nonce Replay via id_token Nonce Verification
≤44.1Update to 45.0
- Medium4.3Missing Authorization
≤44.1Update to 45.0
- High8.8Cross-Site Request Forgery to Privilege Escalation via Plugin Settings Update
≤43.2Update to 43.3
- Medium6.4Authenticated (Subscriber+) Server-Side Request Forgery
≤40.0Update to 40.1
Same weakness (Cross-Site Scripting)
All Cross-Site Scripting| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| High7.2 | Unauthenticated Stored Cross-Site Scripting via Comment User-Agent Header | CVE-2026-120688 | |
| Critical9.8 | Unauthenticated Arbitrary File Upload via File Upload via Public Form Submission | CVE-2026-125055 | |
| Critical9.8 | Unauthenticated PHP Object Injection to Remote Code Execution via 'form' Parameter | CVE-2026-119077 | |
| Medium5.3 | Unauthenticated Sensitive Information Exposure in 'search' Parameter | CVE-2026-121518 |
- High7.2Unauthenticated Stored Cross-Site Scripting via Comment User-Agent Header
EZ SQL Reports Shortcode Widget and DB Backup
≤5.25.25Update to 5.26.45
- Critical9.8Unauthenticated Arbitrary File Upload via File Upload via Public Form Submission
Chatterbug Forms – Fast, Flexible WordPress Form Builder
≤1.0.2Update to 1.1
- Critical9.8Unauthenticated PHP Object Injection to Remote Code Execution via 'form' Parameter
ELEX WordPress HelpDesk & Customer Ticketing System
≤3.3.9Update to 3.4.0
- Medium5.3Unauthenticated Sensitive Information Exposure in 'search' Parameter
Customer Reviews for WooCommerce
≤5.127.0Update to 5.128.0
Timeline
CVE published
Severity high, CVSS 7.2
Record last updated
Sources & licenses
Wordfence record- Vulnerability data
- Wordfence Intelligence. Copyright 2012-2026 Defiant Inc. Licensed under the CC BY-SA 4.0.
- CVE® identifiers
- Copyright 1999-2026 The MITRE Corporation. Used under the CVE Program. CVE® is a registered trademark of The MITRE Corporation.
- CVSS / CWE
- National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.
- EPSS
- Exploit Prediction Scoring System by FIRST.org.
- VulnCrest content
- Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.