Cyber Resilience

CVE-2025-42893

Open Redirect in Sap Business Connector 4.8

Open Redirect
Published
11 November 2025
Modified
16 January 2026
Patch / advisory
View advisory
CVSS Score v3.1 6.1
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS Score 0.0023 14th percentile
Risk Priority 45 floored blend · peak EPSS

Summary

CVE-2025-42893 is a medium-severity Open Redirect (CWE-601) vulnerability in Sap Business Connector. Its CVSS base score is 6.1 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Phishing (T1566); ranked at the 14th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified map to SI-10 (Information Input Validation) and AC-4 (Information Flow Enforcement) — see the control section below for these in your framework.

OWASP Top 10 for Web (2025)

A01:2025 Broken Access Control

EU & UK References

Vulnerability Data

Due to an Open Redirect vulnerability in SAP Business Connector, an unauthenticated attacker could craft a malicious URL that, if accessed by a victim, redirects them to an attacker-controlled site displayed within an embedded frame. Successful exploitation could allow the…

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attacker to steal sensitive information and perform unauthorized actions, impacting the confidentiality and integrity of web client data. There is no impact to system availability resulting from this vulnerability.

CWE(s)
CWE-601

Related Threats

MITRE ATT&CK Enterprise Techniques

T1566 Phishing Initial Access
Adversaries may send phishing messages to gain access to victim systems.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2026-0514Same product: Sap Business Connector
CVE-2023-23860Same vendor: Sap
CVE-2025-42886Same product: Sap Business Connector
CVE-2026-24323Same vendor: Sap
CVE-2024-21734Same vendor: Sap
CVE-2025-30010Same vendor: Sap
CVE-2026-0508Same vendor: Sap
CVE-2023-23855Same vendor: Sap
CVE-2023-23853Same vendor: Sap
CVE-2023-40306Same vendor: Sap

Affected Assets

sap
business connector
4.8

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

Mitigating Controls (NIST 800-53 r5) AI

SI-10 Information Input Validation good match

Input validation directly checks and rejects untrusted redirect targets before they are used in a response.

AC-4 Information Flow Enforcement partial match

Information flow enforcement can restrict redirects to only approved/trusted destinations, stopping untrusted user-supplied URLs from being followed.

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 mostly match
prevents

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.8.23 Web filtering partial match
mitigates

Preventing access to attacker-controlled or malicious sites stops users from being redirected to untrusted locations via open-redirect or phishing links.

References