CVE-2026-109504
HIGHCVSS 7.3/10
Last modified
CVE-2026-109504 is a high-severity vulnerability rated 7.3/10 on the CVSS scale. Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network..
Description
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.
Metrics
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Microsoft SharePoint Server Subscription Edition | >= 16.0.0, < 16.0.20326.20278 |
References
Timeline
- Published
- Last Modified
- Status
- Awaiting Analysis
Frequently Asked Questions
What is CVE-2026-109504?
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.
How severe is CVE-2026-109504?
CVE-2026-109504 has a CVSS score of 7.3/10 (HIGH severity).
How do I fix CVE-2026-109504?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-1095The Canto Testimonials plugin for WordPress is vulnerable to…6.4
- CVE-2026-10950Insufficient policy enforcement in Autofill in Google Chrome…6.5
- CVE-2026-109500Heap-based buffer overflow in Microsoft Office Word allows a…7.5
- CVE-2026-109501Out-of-bounds read in Microsoft Office Word allows an unauth…8.8
- CVE-2026-109502Server-side request forgery (ssrf) in Microsoft Office Share…8.8
- CVE-2026-109503Double free in Microsoft Office Word allows an unauthorized …8.8
- CVE-2026-109505Stack-based buffer overflow in Microsoft Office Word allows …8.8
- CVE-2026-109506Multiple TP-Link Wi-Fi range extenders use a custom, reversi…5.9
- CVE-2026-10951Use after free in Autofill in Google Chrome on iOS prior to …8.8
- CVE-2026-109512The Mang Board plugin for WordPress is vulnerable to Stored …6.4
- CVE-2026-109513The NotificationX – FOMO, Live Sales Notification, WooCommer…7.2
- CVE-2026-109515The MailOptin – Popup, Optin Forms & Email Newsletters for M…9.8
Are you affected by CVE-2026-109504?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST