CVE-2023-33159
HighCVSS 8.8Exploitation Probability (EPSS)
Elevated risk70th percentile - higher than 70% of all known CVEs
Summary
A vulnerability in Microsoft SharePoint Server allows for spoofing, potentially leading to unauthorized access to user data. An attacker can exploit this flaw to impersonate a trusted source.
Risk Assessment
Organizations may be exposed to data theft and loss of user trust, which can result in serious financial and reputational consequences.
Recommendation
It is recommended to update Microsoft SharePoint Server to the latest version to patch this vulnerability and to monitor systems for potential spoofing attempts.
Other vulnerabilities in Microsoft SharePoint Server
See all- CVE-2017-8569High
Microsoft SharePoint Server has an elevation of privilege vulnerability due to improper sanitization of a specially crafted web request to an affected SharePoint server.
- CVE-2025-53770CriticalActively exploited
Deserialization of untrusted data in on-premises Microsoft SharePoint Server allows an unauthorized attacker to execute code over a network. Microsoft is aware of an exploit in the wild and is preparing an update.
- CVE-2023-33160High
A vulnerability in Microsoft SharePoint Server allows remote code execution by an attacker. Exploiting this flaw could lead to system takeover.
- CVE-2021-34467High
Vulnerability in Microsoft SharePoint Server allows remote code execution. An attacker could exploit it to run arbitrary code on the SharePoint server.
- CVE-2021-34519Medium
Information disclosure vulnerability in Microsoft SharePoint Server. An attacker could exploit this flaw to gain access to information that should be protected.
- CVE-2021-27076High
Remote Code Execution vulnerability in Microsoft SharePoint Server. Details are not provided in the description.
- CVE-2020-1069High
A remote code execution vulnerability in Microsoft SharePoint Server due to failure to properly identify and filter unsafe ASP.Net web controls. An authenticated attacker could exploit it by creating a specially crafted page. The update corrects how SharePoint Server handles processing of created content.
- CVE-2023-36894Medium
A vulnerability in Microsoft SharePoint Server allows for information disclosure, potentially leading to unauthorized access to sensitive data.
- CVE-2023-36892High
A vulnerability in Microsoft SharePoint Server allows for spoofing, which may lead to unauthorized access to user data. An attacker can exploit this flaw to impersonate a trusted source.
- CVE-2023-36891High
A vulnerability in Microsoft SharePoint Server allows for spoofing, potentially leading to unauthorized access to user data. An attacker could exploit this flaw to impersonate a trusted source.
Original NVD description (English source)
Microsoft SharePoint Server Spoofing Vulnerability