---
title: "CVE-2023-49583: Escalation of privileges in @sap/xssec"
url: https://erroneo.us/security/cve/CVE-2023-49583/
description: "CVE-2023-49583 (@sap/xssec (npm)): SAP BTP Security Services Integration Library ([Node.js] @sap/xssec - versions"
type: vulnerability-record
section: "Security Digest"
date_published: 2023-12-12
date_modified: 2026-02-25
publisher: erroneo.us
author: erroneo.us Security Desk
cve: "CVE-2023-49583"
kev: false
cvss: 9.1
epss: 0.01085
license: All rights reserved. Quote with attribution and a link.
---

# CVE-2023-49583: Escalation of privileges in @sap/xssec

**Signal:** Critical and remotely reachable. No known exploitation yet, but it is network-reachable without credentials. (Computed from CISA KEV, EPSS and CVSS; not an editorial verdict.)

## Should you act?

- No confirmed exploitation. It is not in CISA’s KEV catalog and CISA’s SSVC assessment records no known exploitation. That can change quickly after a public write-up; re-check if you are affected.
- EPSS 1.1% , percentile 65: FIRST’s model estimates a 1.1% chance of exploitation activity in the next 30 days, higher than 65% of all scored CVEs (moderate). EPSS is a probability, not a verdict.
- Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.
- Only applies if your dependency tree includes @sap/xssec (npm) < 3.6.0, fixed in 3.6.0 . Check your lockfile, including transitive dependencies.

## What it is

SAP BTP Security Services Integration Library ([Node.js] @sap/xssec - versions

## Affected packages

- npm `@sap/xssec` < 3.6.0 → fixed: 3.6.0

## Affected products (CVE record)

- SAP_SE @sap/xssec: < 3.6.0

## Severity

- sap CVSS 3.1: 9.1 `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N`
- GitHub CVSS 3.1: 9.1 `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N`

## Exploitation

- CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
- CISA SSVC assessment: exploitation none , automatable yes , technical impact total .
- FIRST EPSS (model of 2026-10-21): 1.08% probability of exploitation activity in the next 30 days; percentile 65.

## Sources

- [me.sap.com](https://me.sap.com/notes/3411067)
- [GitHub Advisory GHSA-p2vx-qj66-88q3](https://github.com/advisories/GHSA-p2vx-qj66-88q3)
- [CVE.org record CVE-2023-49583](https://www.cve.org/CVERecord?id=CVE-2023-49583)
- [NVD entry CVE-2023-49583](https://nvd.nist.gov/vuln/detail/CVE-2023-49583)
- [sap.com](https://www.sap.com/documents/2022/02/fa865ea4-167e-0010-bca6-c68f7e60039b.html)
- [npmjs.com](https://www.npmjs.com/package/@sap/xssec)
- [blogs.sap.com](https://blogs.sap.com/2023/12/12/unveiling-critical-security-updates-sap-btp-security-note-3411067/)
- [me.sap.com](https://me.sap.com/notes/3412456)
- [me.sap.com](https://me.sap.com/notes/3413475)

---
Source page: https://erroneo.us/security/cve/CVE-2023-49583/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt