CVE-2022-30158Network attack vector

Authenticated code execution via crafted site creation

Published Jun 15, 2022 · Updated Jan 2, 2025

Remote code execution in Microsoft SharePoint Server allows remote authenticated users to execute code through crafted site creation. Microsoft has not disclosed the defective function or validation error that lets crafted site content cross the intended execution boundary. Exploitation requires authentication and permission to create a page; successful attacks execute code on the SharePoint server.

CVSS severity8.8
High
EPSS probability3.40%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Remote code execution in Microsoft SharePoint Server allows remote authenticated users to execute code through crafted site creation. Microsoft has not disclosed the defective function or validation error that lets crafted site content cross the intended execution boundary. Exploitation requires authentication and permission to create a page; successful attacks execute code on the SharePoint server.

The record

CVE
CVE-2022-30158
Published
Jun 15, 2022
Updated
Jan 2, 2025
Vendor
Microsoft
Product
Microsoft SharePoint Foundation 2013
Classifications
T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 15, 2022CVE publishedPublication date reported by the CVE source.
  2. Jan 2, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=15.0.0 <15.0.5459.1001

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Microsoft · Microsoft SharePoint Foundation 2013version=15.0.0 <15.0.5459.1001
Microsoft · Microsoft SharePoint Enterprise Server 2016version=16.0.0 <16.0.5332.1001
Microsoft · Microsoft SharePoint Server 2019version=16.0.0 <16.0.10387.20008
Microsoft · Microsoft SharePoint Server 2013version=15.0.0 <15.0.5459.1001
Microsoft · Microsoft SharePoint Server Subscription Editionversion=16.0.0 <16.0.14931.20418

Published CVSS scores

6.0NIST NVDAV:N/AC:M/Au:S/C:P/I:P/A:P
8.8Microsoft CorporationCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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