CVE-2025-42942: SAP NetWeaver Application Server for ABAP · Cross-site Scripting
Affects SAP NetWeaver Application Server for ABAPSource CVE Database V5
Not known to be exploited · CVSS 6.1 Medium.
Data as of 26 Oct 2026, 10:12 UTC
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 13% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:NExploitation evidence
Disclosed: evidence found.
CVE published 12 Aug 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
AI-suggested
- Implement strict input validation and output encoding on all web pages generated by SAP NetWeaver to neutralize malicious scripts.
- Apply SAP security notes and patches as soon as they become available for the affected SAP_BASIS versions.
- Employ web application firewalls (WAFs) with rules specifically designed to detect and block XSS payloads targeting SAP web interfaces.
- Conduct user awareness training focused on phishing and social engineering risks, emphasizing caution when clicking on unsolicited or suspicious URLs.
- Restrict SAP web interface exposure by limiting access to trusted networks and enforcing strong authentication mechanisms, such as multi-factor authentication (MFA).
- Monitor SAP system logs and web access logs for unusual activity patterns indicative of attempted exploitation.
- Use Content Security Policy (CSP) headers to reduce the impact of XSS by restricting the sources of executable scripts in browsers accessing SAP applications.
- Regularly review and harden SAP system configurations to minimize attack surface and ensure secure coding practices are followed for custom developments.
Description
SAP NetWeaver Application Server for ABAP has cross-site scripting vulnerability. Due to this, an unauthenticated attacker could craft a URL embedded with malicious script and trick an unauthenticated victim to click on it to execute the script. Upon successful exploitation, the attacker could access and modify limited information within the scope of victim's browser. This vulnerability has no impact on availability of the application.