CVE-2021-33703

Under certain conditions, NetWeaver Enterprise Portal, versions - 7.30, 7.31, 7.40, 7.50, does...

8.3 High

Under certain conditions, NetWeaver Enterprise Portal, versions - 7.30, 7.31, 7.40, 7.50, does not sufficiently encode URL parameters. An attacker can craft a malicious link and send it to a victim. A successful attack results in Reflected Cross-Site Scripting (XSS) vulnerability.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: High
Privileges needed: None
User interaction: Required

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

1.48%Up 0.9 points since Aug 11, 2021

What each source reports

CVE List Score used 8.3

Record: CVE-2021-33703
CVSS 3.0: 8.3 HighCVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
Weakness: CWE-79
Updated: 2026-11-02

EUVDEUVD-2021-20380 8.3

Record: EUVD-2021-20380
CVSS 3.0: 8.3 HighCVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
Updated: 2026-11-03

GitHub AdvisoriesGHSA-mc4p-q6wc-4cwx No score

Under certain conditions, NetWeaver Enterprise Portal, versions - 7.30, 7.31, 7.40, 7.50, does...

Record: GHSA-mc4p-q6wc-4cwx
Weakness: CWE-79
Updated: 2026-11-02

NVD 6.1

Record: CVE-2021-33703
CVSS 3.1: 6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CVSS 3.0: 8.3 HighCVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
CVSS 2.0: 2.6 LowAV:N/AC:H/Au:N/C:N/I:P/A:N
Weakness: CWE-79
Updated: 2026-11-02

Affected products

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2021-33703 is a high vulnerability (CVSS 8.3) in Sap Netweaver Enterprise Portal, published August 10, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.48%, the 74th percentile. No source names a fixed version.