CVE-2025-42893
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedDue 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 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.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · moderate confidenceThis is an Open Redirect vulnerability in SAP Business Connector where unauthenticated attackers can craft malicious URLs containing attacker-controlled redirect parameters. When victims access these URLs, they are redirected to a malicious site displayed within an embedded frame (iframe), enabling the attacker to steal sensitive information and perform unauthorized actions on web client data.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data= 4.8CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- Required
- Scope
- Changed
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Identify SAP Business Connector versionLocate the installation directory and check the version file or startup logs, or query the web interface / sap bc / version endpoint if availableAffected if The installed version is exactly 4.8
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Locate redirect-enabled endpointsReview web application logs or HAR captures for requests containing redirect-related parameters such as 'redirect=', 'url=', 'target=', or 'returnURL='Affected if The application accepts user-controlled redirect parameters in URLs without validation
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Verify X-Frame-Options header presenceSend a request to the web interface and inspect response headers for the X-Frame-Options header using a tool like curl -I or browser developer toolsAffected if The X-Frame-Options header is missing or set to 'ALLOWALL', allowing the application to be embedded in iframes on any site
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Check Content-Security-Policy frame-ancestorsInspect HTTP response headers for Content-Security-Policy and verify if the frame-ancestors directive is configured to restrict embeddingAffected if The Content-Security-Policy header is missing or does not include restrictive frame-ancestors directives, permitting clickjacking via iframe embedding
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Test iframe embeddabilityCreate a test HTML page with an iframe pointing to the SAP Business Connector web URL and attempt to load it in a browserAffected if The application loads successfully within a cross-origin iframe, confirming it is vulnerable to clickjacking attacks
A user is affected if they are running SAP Business Connector version 4.8 with a web interface that accepts unauthenticated redirect parameters and can be embedded in iframes due to missing or weak security headers.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
dbcve · scopedImplement strict validation and whitelisting of redirect URLs to prevent user-controlled input from determining redirect destinations. Additionally, configure X-Frame-Options and Content-Security-Policy headers to prevent the application from being embedded in iframes, mitigating clickjacking attack vectors.
Contact SAP support for the specific patched release of Business Connector (version > 4.8)
- 1. Identify the current SAP Business Connector installation version to confirm it is version 4.8
- 2. Contact SAP support or check SAP Note(s) related to CVE-2025-42893 to obtain the specific patched version
- 3. Plan and schedule the upgrade during a maintenance window
- 4. Back up the current Business Connector configuration and any custom mappings
- 5. Perform the upgrade to the patched version provided by SAP
- 6. Verify the open redirect vulnerability is resolved by testing with crafted redirect URLs
- 7. Validate that existing integrations and mappings continue to function correctly
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation4.0 h
- Implementation8.0 h
- Testing4.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-42893 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2025-42893 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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