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CVE-2025-64672 is a high-severity Microsoft Office SharePoint vulnerability caused by improper neutralization of input during web page generation, i.e., a cross-site scripting (XSS) flaw. According to the provided content, the issue affects Microsoft Office SharePoint and allows an authorized attacker to perform spoofing over a network. The vulnerability is identified by Microsoft as a SharePoint Server spoofing vulnerability and is mapped to CWE-79. No additional technical detail about the specific vulnerable function, parameter, page, or whether the XSS is reflected, stored, or DOM-based is provided in the supplied material.
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Patch, then assume compromise.
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No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
8 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A Microsoft SharePoint (Microsoft Office SharePoint) cross-site scripting (CWE-79) issue that enables an authorized attacker to perform spoofing over the network.
A high-severity vulnerability in Microsoft Office SharePoint with a CVSS score of 8.8.
Specific Microsoft vulnerability affecting Microsoft Office SharePoint listed in the December 2025 Security Updates.
A Microsoft December 2025 security update vulnerability affecting Microsoft Office SharePoint.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.