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Microsoft Security Update Guide · SharePoint

Microsoft Office SharePoint Elevation of Privilege Vulnerability

Microsoft · EN CVE-2026-69716 Important Action required CVSS 8.8

Published

SummaryDetailedSecurity

What does this mean?

  • Elevation of Privilege. An attacker can gain more rights than they should have, for example admin rights.
  • It can be exploited over the network (including from the internet if the service is reachable there), with an ordinary user account and without any user action.
  • CVSS 8.8 out of 10: high. Microsoft rates it Important.
  • No attacks reported; Microsoft expects exploitation to be less likely.
  • What should you do? Install the security update for the version you run (or a later cumulative update):
    • Microsoft SharePoint Server Subscription Edition: KB5002908 16.0.20326.20094
  • This applies to SharePoint Server you run yourself. Microsoft updates SharePoint Online in Microsoft 365.

Microsoft Office SharePoint · Elevation of Privilege

Improper neutralization of special elements used in an sql command ('sql injection') in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.

SharePoint Office / Microsoft 365 Apps

How do I check if I am affected?

SharePoint Server: check and update

  1. Check your farm build in the SharePoint Management Shell:
    (Get-SPFarm).BuildVersion
    Or in Central Administration → Upgrade and Migration → Check product and patch installation status.
  2. If the build is equal to or higher than the build under "Affected products and updates" below, this vulnerability is fixed. A later cumulative update includes the fix too.
  3. Otherwise install the update on every server in the farm, then run the SharePoint Products Configuration Wizard, or:
    PSConfig.exe -cmd upgrade -inplace b2b -wait -cmd applicationcontent -install -cmd installfeatures -cmd secureresources -cmd services -install
  4. You do not need to update SharePoint Online in Microsoft 365; Microsoft does that.

What kind of flaw is this?

Key facts

Released
8 sep 2026
Impact
Elevation of Privilege
Max severity
Important
Weakness
CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
CVSS 3.1
8.8 / 7.7 (base / temporal)
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
Publicly disclosed
No
Exploited
No
Exploitability assessment
Exploitation Less Likely
Customer action required
Yes
Links
Microsoft Security Update Guide · CVE.org

CVSS metrics

Base score metrics
Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
Temporal score metrics
Exploit Code MaturityUnproven
Remediation LevelOfficial Fix
Report ConfidenceConfirmed

Affected products and updates

ProductUpdateBuild
Microsoft SharePoint Server Subscription EditionKB5002908 · Security Update16.0.20326.20094

FAQ

How could an attacker exploit this vulnerability?
An authenticated attacker with low-level access could send a specially crafted request to an affected service. Successful exploitation could allow the attacker to execute database commands with elevated privileges.

Revisions

VersionDateNote
18 sep 2026Information published.

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Source: Microsoft Security Update Guide. 365Fanatic is not affiliated with Microsoft.