What’s Vulnerable › Vulnerabilities

CVE-2017-9791: Apache Struts 1 Improper Input Validation Vulnerability

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: yes — in CISA KEV since 2022-02-10
• EPSS: 98.9% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2017-07-10 · updated 2026-06-17
• Weakness: CWE-20

Description

The Struts 1 plugin in Apache Struts 2.1.x and 2.3.x might allow remote code execution via a malicious field value passed in a raw message to the ActionMessage.

Affected products

• Apache Struts: 2.3.1, 2.3.1.1, 2.3.1.2, 2.3.3, 2.3.4, 2.3.4.1 (+27)

References

• http://struts.apache.org/docs/s2-048.html
• http://www.oracle.com/technetwork/security-advisory/alert-cve-2017-9805-3889403.html
• http://www.securityfocus.com/bid/99484
• http://www.securitytracker.com/id/1038838
• https://security.netapp.com/advisory/ntap-20180706-0002/
• https://www.exploit-db.com/exploits/42324/
• https://www.exploit-db.com/exploits/44643/
• http://struts.apache.org/docs/s2-048.html
• http://www.oracle.com/technetwork/security-advisory/alert-cve-2017-9805-3889403.html
• http://www.securityfocus.com/bid/99484
• http://www.securitytracker.com/id/1038838
• https://security.netapp.com/advisory/ntap-20180706-0002/

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