CVE-2017-9791
CriticalPublished
Apache Struts 1 Improper Input Validation Vulnerability
- Published
- Jul 10, 2017
- Updated
- Oct 21, 2025
- Assigning CNA
- apache
- Evidence observed
- Jul 7, 2017
Primary CVSS
9.8/ 10Critical
nvd · CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H98.9%
High · next 30 days
- Percentile
- 99.9%
- Model date
- Oct 13, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
CISA Known Exploited
This CVE appears in the CISA Known Exploited Vulnerabilities catalog.
Summary
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.
Sources
Repository evidence: Files: 3 · Repositories: 3
1 Module1 Template1 Lab
http/cves/2017/CVE-2017-9791.yaml
Nuclei TemplatesDeclared conditions
- network: http($.protocol_keys)
- verification: status,word($.matchers[*].type)
- Vulhub vulnerability labs
Declared conditions
- lab image version: vulhub/struts2:2.3.32-showcase(struts2/s2-048/docker-compose.yml:services.struts2.image)
modules/exploits/multi/http/struts2_code_exec_showcase.rb
Metasploit Framework modulesDeclared conditions
- platform: Linux,Unix,Windows($.exploit_multi/http/struts2_code_exec_showcase.platform)
- verification: check_declared($.exploit_multi/http/struts2_code_exec_showcase.check)
Responsible use
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