CVE-2023-23395

Open Redirect in Microsoft Sharepoint Server 2013 … 2019

Open Redirect

Published

14 March 2023

Modified

21 November 2024

Patch / advisory

View advisory

CVSS Score v3.1 3.1

Click a component to see what it means

Raw vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N

EPSS Score 0.0060 48th percentile

Risk Priority 36 floored blend · peak EPSS

CVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.

Summary

CVE-2023-23395 is a low-severity Open Redirect (CWE-601) vulnerability in Microsoft Sharepoint Server. Its CVSS base score is 3.1 (Low).

Operationally, exploitation aligns with the MITRE ATT&CK technique Data Obfuscation (T1001); ranked at the 48th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

Deeper analysis AI-assisted summary

Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.

CVE-2023-23395 is a spoofing vulnerability in Microsoft SharePoint Server, assigned CWE-601 for URL redirection to an untrusted site. It carries a CVSS 3.1 base score of 3.1 reflecting network attack vector, high attack complexity, no required privileges, and required user interaction, resulting in limited integrity impact with no confidentiality or availability effects.

An unauthenticated attacker can send a crafted link that, once clicked by a victim, redirects the user to an attacker-controlled destination. This allows the adversary to present spoofed content or capture limited session-related actions while operating within the constraints of the high complexity and user-interaction requirements.

Microsoft has published remediation guidance in its Security Response Center update guide for CVE-2023-23395, directing administrators to apply the available security updates for affected SharePoint Server versions. The associated EPSS score remains low, with a current value of 0.0628 and a peak of 0.0762.

OWASP Top 10 for Web (2025)

EU & UK References

🇪🇺 ENISA EUVD: EUVD-2023-27495

Vulnerability Data

Microsoft SharePoint Server Spoofing Vulnerability

CWE(s): CWE-601 NVD-CWE-noinfo

Related Threats

MITRE ATT&CK Enterprise Techniques

T1001 Data Obfuscation Command And Control

Adversaries may obfuscate command and control traffic to make it more difficult to detect.

attack.mitre.org →

T1003.001 LSASS Memory Credential Access

Adversaries may attempt to access credential material stored in the process memory of the Local Security Authority Subsystem Service (LSASS).

attack.mitre.org →

T1003.002 Security Account Manager Credential Access

Adversaries may attempt to extract credential material from the Security Account Manager (SAM) database either through in-memory techniques or through the Windows Registry where the SAM database is stored.

attack.mitre.org →

T1003.005 Cached Domain Credentials Credential Access

Adversaries may attempt to access cached domain credentials used to allow authentication to occur in the event a domain controller is unavailable.

attack.mitre.org →

T1014 Rootkit Stealth

Adversaries may use rootkits to hide the presence of programs, files, network connections, services, drivers, and other system components.

attack.mitre.org →

T1016.002 Wi-Fi Discovery Discovery

Adversaries may search for information about Wi-Fi networks, such as network names and passwords, on compromised systems.

attack.mitre.org →

Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2023-28288Same product: Microsoft Sharepoint Foundation

CVE-2025-21401Same vendor: Microsoft

CVE-2022-44690Same product: Microsoft Sharepoint Foundation

CVE-2024-43536Same vendor: Microsoft

CVE-2023-21742Same product: Microsoft Sharepoint Foundation

CVE-2023-21744Same product: Microsoft Sharepoint Foundation

CVE-2024-43543Same vendor: Microsoft

CVE-2026-41106Same vendor: Microsoft

CVE-2026-47645Same vendor: Microsoft

CVE-2026-33102Same vendor: Microsoft

Affected Assets

microsoft

sharepoint foundation

2013

microsoft

sharepoint server

2013, 2019, all versions

Mitigating Controls

Control response

Prevent

Stop it (NIST 800-53)

—

Detect

Catch it (NIST detect / respond)

—

Harden

Shrink the surface (DISA STIG)

—

Validate

Prove the fix (OWASP ASVS)

V3.7.2

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

AT-2 Literacy Training and Awareness

addresses: CWE-601

Security awareness includes verifying URLs and avoiding untrusted redirects that lead to malicious sites.

SI-10 Information Input Validation

addresses: CWE-601

Validates redirect targets and URLs to ensure they conform to allowed destinations.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 partial match

blocks

Secure SDLC practices directly require input validation and untrusted-redirect controls that prevent CWE-601.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

A.5.14 Information transfer partial match

removes

A.5.15 Access control partial match

removes

A.5.16 Identity management partial match

removes

A.5.17 Authentication information partial match

removes

A.5.18 Access rights partial match

removes

A.8.10 Information deletion partial match

removes