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CVE-2023-31405: Log Injection vulnerability in SAP NetWeaver AS for Java (Log Viewer)

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-07-11 · updated 2026-06-17
• Weakness: CWE-117

Description

SAP NetWeaver AS for Java - versions ENGINEAPI 7.50, SERVERCORE 7.50, J2EE-APPS 7.50, allows an unauthenticated attacker to craft a request over the network which can result in unwarranted modifications to a system log without user interaction. There is no ability to view any information or any effect on availability.

Affected products

• SAP NetWeaver AS for Java: 7.50

References

• https://me.sap.com/notes/3324732
• https://www.sap.com/documents/2022/02/fa865ea4-167e-0010-bca6-c68f7e60039b.html
• https://me.sap.com/notes/3324732
• https://www.sap.com/documents/2022/02/fa865ea4-167e-0010-bca6-c68f7e60039b.html

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