Vulnerability · Published Aug 6, 2026 · Assigned by microsoft
CVE-2026-70332Microsoft Office SharePoint Spoofing Vulnerability
Critical 9.6
In plain English
A critical-severity cross-site scripting in Microsoft SharePoint Online from Microsoft. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.9% (higher than 59% of all known vulnerabilities).
Severity (CVSS 3.1)9.6Critical
Exploit odds (30 days)0.9%top 41.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an unauthorized attacker to perform spoofing over a network.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Microsoft SharePoint Online | - |
Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C
References
- Microsoft Office SharePoint Spoofing Vulnerability vendor-advisory, patch