Microsoft Sharepoint Server 2019 vulnerabilities

CVE-2026-56157 [MEDIUM] CWE-284 CVE-2026-56157: Improper access control in Microsoft Office SharePoint allows an authorized attacker to perform spoo Improper access control in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.

CVE-2025-30378 [HIGH] CWE-502 CVE-2025-30378: Deserialization of untrusted data in Microsoft Office SharePoint allows an unauthorized attacker to Deserialization of untrusted data in Microsoft Office SharePoint allows an unauthorized attacker to execute code locally.

CVE-2025-59232 [HIGH] CWE-125 CVE-2025-59232: Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.

CVE-2026-20958 [MEDIUM] CWE-918 CVE-2026-20958: Server-side request forgery (ssrf) in Microsoft Office SharePoint allows an authorized attacker to d Server-side request forgery (ssrf) in Microsoft Office SharePoint allows an authorized attacker to disclose information over a network.

CVE-2025-54905 [HIGH] CWE-822 CVE-2025-54905: Untrusted pointer dereference in Microsoft Office Word allows an unauthorized attacker to disclose i Untrusted pointer dereference in Microsoft Office Word allows an unauthorized attacker to disclose information locally.

CVE-2023-33129 [MEDIUM] CWE-122 CVE-2023-33129: Microsoft SharePoint Server Denial of Service Vulnerability Microsoft SharePoint Server Denial of Service Vulnerability

CVE-2025-53736 [MEDIUM] CWE-126 CVE-2025-53736: Buffer over-read in Microsoft Office Word allows an unauthorized attacker to disclose information lo Buffer over-read in Microsoft Office Word allows an unauthorized attacker to disclose information locally.

CVE-2026-47641 [MEDIUM] CWE-20 CVE-2026-47641: Improper input validation in Microsoft Office SharePoint allows an authorized attacker to perform sp Improper input validation in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.

CVE-2020-1345 [MEDIUM] CWE-79 CVE-2020-1345: <p>A cross-site-scripting (XSS) vulnerability exists when Microsoft SharePoint Server does not prope A cross-site-scripting (XSS) vulnerability exists when Microsoft SharePoint Server does not properly sanitize a specially crafted web request to an affected SharePoint server. An authenticated attacker could exploit the vulnerability by sending a specially crafted request to an affected SharePoint server. The attacker who successfully exploited the vul

CVE-2020-1198 [MEDIUM] CWE-79 CVE-2020-1198: <p>A cross-site-scripting (XSS) vulnerability exists when Microsoft SharePoint Server does not prope A cross-site-scripting (XSS) vulnerability exists when Microsoft SharePoint Server does not properly sanitize a specially crafted web request to an affected SharePoint server. An authenticated attacker could exploit the vulnerability by sending a specially crafted request to an affected SharePoint server. The attacker who successfully exploited the vul

CVE-2020-1482 [MEDIUM] CWE-79 CVE-2020-1482: <p>A cross-site-scripting (XSS) vulnerability exists when Microsoft SharePoint Server does not prope A cross-site-scripting (XSS) vulnerability exists when Microsoft SharePoint Server does not properly sanitize a specially crafted web request to an affected SharePoint server. An authenticated attacker could exploit the vulnerability by sending a specially crafted request to an affected SharePoint server. The attacker who successfully exploited the vul

CVE-2022-24472 [MEDIUM] CVE-2022-24472: Microsoft SharePoint Server Spoofing Vulnerability Microsoft SharePoint Server Spoofing Vulnerability

CVE-2026-48560 [MEDIUM] CWE-502 CVE-2026-48560: Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to pe Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.

CVE-2026-55026 [MEDIUM] CWE-190 CVE-2026-55026: Integer overflow or wraparound in Microsoft Office allows an unauthorized attacker to disclose infor Integer overflow or wraparound in Microsoft Office allows an unauthorized attacker to disclose information locally.

CVE-2021-28450 [MEDIUM] CVE-2021-28450: Microsoft SharePoint Denial of Service Vulnerability Microsoft SharePoint Denial of Service Vulnerability

CVE-2021-42320 [MEDIUM] CWE-290 CVE-2021-42320: Microsoft SharePoint Server Spoofing Vulnerability Microsoft SharePoint Server Spoofing Vulnerability

CVE-2026-33113 [MEDIUM] CWE-79 CVE-2026-33113: Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Of 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.

CVE-2020-1573 [MEDIUM] CWE-79 CVE-2020-1573: A cross-site-scripting (XSS) vulnerability exists when Microsoft SharePoint Server does not properly A cross-site-scripting (XSS) vulnerability exists when Microsoft SharePoint Server does not properly sanitize a specially crafted web request to an affected SharePoint server. An authenticated attacker could exploit the vulnerability by sending a specially crafted request to an affected SharePoint server. The attacker who successfully exploited the vul

CVE-2019-1203 [MEDIUM] CWE-79 CVE-2019-1203: A cross-site-scripting (XSS) vulnerability exists when Microsoft SharePoint Server does not properly A cross-site-scripting (XSS) vulnerability exists when Microsoft SharePoint Server does not properly sanitize a specially crafted web request to an affected SharePoint server. An authenticated attacker could exploit the vulnerability by sending a specially crafted request to an affected SharePoint server. The attacker who successfully exploited the vul

CVE-2020-16945 [MEDIUM] CWE-79 CVE-2020-16945: <p>A cross-site-scripting (XSS) vulnerability exists when Microsoft SharePoint Server does not prope A cross-site-scripting (XSS) vulnerability exists when Microsoft SharePoint Server does not properly sanitize a specially crafted web request to an affected SharePoint server. An authenticated attacker could exploit the vulnerability by sending a specially crafted request to an affected SharePoint server. The attacker who successfully exploited the v