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TI-2021-13039 Aliases CVE-2021-33665GHSA-v63x-mvcc-j8h6

Cross-site scripting in SAP NetWeaver Application Server ABAP

Priority LOW 25CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-79.

Summary

SAP NetWeaver Application Server ABAP (Applications based on SAP GUI for HTML), versions - KRNL64NUC - 7.49, KRNL64UC - 7.49,7.53, KERNEL - 7.49,7.53,7.77,7.81,7.84, does not sufficiently encode user-controlled inputs, resulting in Cross-Site Scripting (XSS) vulnerability.

Why it matters now

EPSS 0.00473 41st percentileScored 2026-11-07
Fix Fixed SAP NetWeaver Application Server ABAP (Applications based on SAP GUI for HTML) (SAP SE): 7.53, 7.77, 7.81 +1

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
SAPSAP NetWeaver Application Server ABAP (Applications based on SAP GUI for HTML)< KRNL64NUC - 7.49; < KRNL64UC - 7.49; before 7.53; < KERNEL - 7.49; before 7.77; before 7.81; before 7.847.53, 7.77, 7.81, 7.84Patch availableCNA
  • SAP NetWeaver Application Server ABAP (Applications based on SAP GUI for HTML) VendorSAP Affected < KRNL64NUC - 7.49; < KRNL64UC - 7.49; before 7.53; < KERNEL - 7.49; before 7.77; before 7.81; before 7.84 Fixed in 7.53, 7.77, 7.81, 7.84 Patch available CNA

CPE configurations NVD · 8

CPEVersionsRoleVendor
cpe:2.3:a:sap:netweaver_application_server_abap:kernel_7.49:*:*:*:*:*:*:*kernel_7.49VulnerableSAP
cpe:2.3:a:sap:netweaver_application_server_abap:kernel_7.53:*:*:*:*:*:*:*kernel_7.53VulnerableSAP
cpe:2.3:a:sap:netweaver_application_server_abap:kernel_7.77:*:*:*:*:*:*:*kernel_7.77VulnerableSAP
cpe:2.3:a:sap:netweaver_application_server_abap:kernel_7.81:*:*:*:*:*:*:*kernel_7.81VulnerableSAP
cpe:2.3:a:sap:netweaver_application_server_abap:kernel_7.84:*:*:*:*:*:*:*kernel_7.84VulnerableSAP
cpe:2.3:a:sap:netweaver_application_server_abap:krnl64nuc_7.49:*:*:*:*:*:*:*krnl64nuc_7.49VulnerableSAP
cpe:2.3:a:sap:netweaver_application_server_abap:krnl64uc_7.49:*:*:*:*:*:*:*krnl64uc_7.49VulnerableSAP
cpe:2.3:a:sap:netweaver_application_server_abap:krnl64uc_7.53:*:*:*:*:*:*:*krnl64uc_7.53VulnerableSAP
  • cpe:2.3:a:sap:netweaver_application_server_abap:kernel_7.49:*:*:*:*:*:*:* Versions kernel_7.49 Vulnerable ·SAP
  • cpe:2.3:a:sap:netweaver_application_server_abap:kernel_7.53:*:*:*:*:*:*:* Versions kernel_7.53 Vulnerable ·SAP
  • cpe:2.3:a:sap:netweaver_application_server_abap:kernel_7.77:*:*:*:*:*:*:* Versions kernel_7.77 Vulnerable ·SAP
  • cpe:2.3:a:sap:netweaver_application_server_abap:kernel_7.81:*:*:*:*:*:*:* Versions kernel_7.81 Vulnerable ·SAP
  • cpe:2.3:a:sap:netweaver_application_server_abap:kernel_7.84:*:*:*:*:*:*:* Versions kernel_7.84 Vulnerable ·SAP
  • cpe:2.3:a:sap:netweaver_application_server_abap:krnl64nuc_7.49:*:*:*:*:*:*:* Versions krnl64nuc_7.49 Vulnerable ·SAP
  • cpe:2.3:a:sap:netweaver_application_server_abap:krnl64uc_7.49:*:*:*:*:*:*:* Versions krnl64uc_7.49 Vulnerable ·SAP
  • cpe:2.3:a:sap:netweaver_application_server_abap:krnl64uc_7.53:*:*:*:*:*:*:* Versions krnl64uc_7.53 Vulnerable ·SAP

Remediation

  • Fix · CNA SAP NetWeaver Application Server ABAP (Applications based on SAP GUI for HTML) (SAP SE) Fixed in 7.53, 7.77, 7.81, 7.84

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-33665
  2. 2026-10-03 Alias added: GHSA-v63x-mvcc-j8h6

References

Advisory 2

  • TI-2022-06811 SAP NetWeaver Application Server ABAP, SAP NetWeaver Application Server Java, ABAP… KEVCVSS 3.1CRITICAL 10.0
  • TI-2023-21149 Missing Authorization check in SAP CommonCryptoLib CVSS 3.1CRITICAL 9.8
  • TI-2023-12229 Directory Traversal vulnerability in SAP NetWeaver AS for ABAP and ABAP Platform CVSS 3.1CRITICAL 9.6
  • TI-2023-12228 Directory Traversal vulnerability in SAP NetWeaver AS for ABAP and ABAP Platform CVSS 3.1CRITICAL 9.6
  • TI-2021-19921 Code injection in SAP ABAP Server & ABAP Platform CVSS 3.1CRITICAL 9.8
  • TI-2021-09062 Improper authentication in SAP NetWeaver AS ABAP and ABAP Platform CVSS 3.1CRITICAL 9.8
See all 85 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences