CVE-2021-38183Network attack vector

Reflected script execution via insufficient CMS encoding

Published Oct 12, 2021 · Updated Aug 4, 2024

Cross-site scripting in SAP NetWeaver 700, 701, 702, and 730 allows remote attackers to execute script in a victim's browser. The ABAP cms Service in component BC-CTS-TMS insufficiently encodes user-controlled content before reflecting it into a web response. Exploitation requires a victim to submit attacker-supplied content and view the reflected response, exposing browser-accessible data to reading or modification.

CVSS severity6.1
Medium
EPSS probability0.75%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in SAP NetWeaver 700, 701, 702, and 730 allows remote attackers to execute script in a victim's browser. The ABAP cms Service in component BC-CTS-TMS insufficiently encodes user-controlled content before reflecting it into a web response. Exploitation requires a victim to submit attacker-supplied content and view the reflected response, exposing browser-accessible data to reading or modification.

The record

CVE
CVE-2021-38183
Published
Oct 12, 2021
Updated
Aug 4, 2024
Vendor
SAP SE
Product
SAP NetWeaver
Classifications
CWE-79, T1189
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 12, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 700
  2. Affected versionversion=< 701
  3. Affected versionversion=< 702
  4. Affected versionversion=< 730

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

SAP SE · SAP NetWeaverversion=< 700; version=< 701; version=< 702; version=< 730

Published CVSS scores

6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
4.3NIST NVDAV:N/AC:M/Au:N/C:N/I:P/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1189Drive-by Compromise

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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