Sap XssecApplication · Sap

CVE-2023-50423

CRITICAL · 9.8 CVSS v3.1 Published 2023-12-12
Fix available
A fix is available. Upgrade to 4.1.0 or later.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable No privileges Zero-click

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 · unedited
SAP BTP Security Services Integration Library ([Python] sap-xssec) - versions < 4.1.0, allow under certain conditions an escalation of privileges. On successful exploitation, an unauthenticated attacker can obtain arbitrary permissions within the application.

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 confidence

The SAP BTP Security Services Integration Library (sap-xssec) versions prior to 4.1.0 contain a privilege escalation vulnerability that allows unauthenticated attackers to obtain arbitrary permissions within the application under certain conditions. This critical flaw in the security library enables complete authorization bypass.

MitigationUpgrade sap-xssec to version 4.1.0 or later and verify that application authentication and authorization controls function correctly after the upgrade.

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
Sap XssecApplication
Affected:< 4.1.0

CVSS 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
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

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 checks

Work through these to decide whether this CVE applies to you.

  1. Locate sap-xssec dependency in your project
    Search your project source code for 'sap-xssec' in package.json, package-lock.json, or other dependency declaration files
    Affected if sap-xssec is listed as a dependency with a version lower than 4.1.0
  2. Verify the installed library version
    If using npm, run 'npm list sap-xssec' in your project directory to see the installed version, or inspect node_modules/sap-xssec/package.json directly
    Affected if The installed version shown is prior to 4.1.0 (for example, 4.0.x, 3.x.x, etc.)
  3. Check for runtime version reporting
    If your application logs library versions at startup, review those logs for the sap-xssec version number
    Affected if The logged version is anything less than 4.1.0
  4. Identify if authentication relies on sap-xssec
    Review your application code to confirm that sap-xssec is used for authentication or authorization handling (check imports of sap-xssec and its usage in authentication middleware)
    Affected if The application uses sap-xssec for security checks and the version is below 4.1.0

Your environment is affected if sap-xssec version below 4.1.0 is installed and your application uses this library for authentication or authorization purposes.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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 · scoped
Upgrade available Upgrade to 4.1.0 or later
Fixed in 4.1.0
Interim mitigation

Upgrade sap-xssec to version 4.1.0 or later and verify that application authentication and authorization controls function correctly after the upgrade.

Recommended fix High confidence

4.1.0

  1. Run 'pip install sap-xssec>=4.1.0' to upgrade the package to version 4.1.0 or later
  2. Verify the upgrade was successful by checking the installed version with 'pip show sap-xssec'
  3. Restart any running applications or services that use the sap-xssec library
  4. Test that the application functions correctly after the upgrade

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Sap Xssec Scoped from the published advisory
  • Consultation3.0 h
  • Implementation2.0 h
  • Testing8.0 h
  • Review / QA4.0 h
17.0 hours of engineering $2,880
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $4,608.

Scan for this in your stack

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dbcve dependency scanner

Check whether your project pulls in CVE-2023-50423 — 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 sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2023-50423 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • 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
  • No spam, self-promotion, credentials, or personal data