CVE-2023-31405Network attack vector

Unauthenticated log modification via unvalidated request input

Published Jul 11, 2023 · Updated Nov 8, 2024

Log injection in SAP NetWeaver AS for Java Log Viewer components at 7.50 allows remote attackers to alter system logs via crafted requests. The request-handling path writes attacker-controlled input to a system log without necessary encoding and validation; SAP has not disclosed the affected field or function. No authentication or user interaction is required, but the reported consequence is limited to log integrity without disclosure or service interruption.

CVSS severity5.3
Medium
EPSS probability0.45%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Log injection in SAP NetWeaver AS for Java Log Viewer components at 7.50 allows remote attackers to alter system logs via crafted requests. The request-handling path writes attacker-controlled input to a system log without necessary encoding and validation; SAP has not disclosed the affected field or function. No authentication or user interaction is required, but the reported consequence is limited to log integrity without disclosure or service interruption.

The record

CVE
CVE-2023-31405
Published
Jul 11, 2023
Updated
Nov 8, 2024
Vendor
SAP SE
Product
SAP NetWeaver AS for Java Log Viewer
Classifications
CWE-117, T1070
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 11, 2023CVE publishedPublication date reported by the CVE source.
  2. Nov 8, 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=ENGINEAPI 7.50
  2. Affected versionversion=J2EE-APPS 7.50
  3. Affected versionversion=SERVERCORE 7.50

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

SAP SE · SAP NetWeaver AS for Java Log Viewerversion=ENGINEAPI 7.50; version=J2EE-APPS 7.50; version=SERVERCORE 7.50

Published CVSS scores

5.3SAP SECVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/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-117Improper Output Neutralization for Logs
T1070Indicator Removal

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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