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CVE-2023-49583

27
FAUCET Score

CVE-2023-49583 is a critical privilege escalation vulnerability in the SAP BTP Security Services Integration Library (@sap/xssec) for Node.js, affecting versions prior to 3.6.0. An unauthenticated attacker can exploit this flaw over the network with low complexity to gain arbitrary permissions within the application, leading to complete compromise of confidentiality, integrity, and availability. While no public exploit code or active exploitation has been confirmed, the vulnerability has garnered significant community discussion and media coverage, indicating awareness among security researchers.

Impacted Technologies

VendorProductVersion(s)CPE
< 3.6.0CPE matchmatch criteria
cpe:2.3:a:sap:\@sap\/xssec:*:*:*:*:*:node.js:*:*

CVSS Data

CVSS version used by this source: 3.1

9.1CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
5.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.08%
Probability of exploitation in next 30 days
EPSS Percentile
61.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0109 is in the 47th percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

npmpatch availablevia ghsa
Product: @sap/xssecFixed in: 3.6.0

Vendor Advisories (1)

npmGHSA-p2vx-qj66-88q3critical

Escalation of privileges in @sap/xssec

Dec 12, 2023

References

blogs.sap.com / 2023/12/12/unveiling-critical-security-updates-sap-btp-security-note-3411067
Vendor Advisory
me.sap.com / notes/3411067
Permissions Required
me.sap.com / notes/3412456
me.sap.com / notes/3413475
npmjs.com / package/@sap/xssec
Product
sap.com / documents/2022/02/fa865ea4-167e-0010-bca6-c68f7e60039b.html
Vendor Advisory