Security readout for executives and security teams
This Apache Struts flaw can let an unauthenticated attacker execute code on a vulnerable web application when specific Struts namespace settings and result or URL tag patterns are present. It affects Struts 2.3 through 2.3.34 and 2.5 through 2.5.16. CISA KEV marks it as known exploited. Exposure is most likely in internet-facing Java web applications using Apache Struts versions 2.3 to 2.3.34 or 2.5 to 2.5.16 with the named namespace conditions. Products bundling Struts may also be affected, as shown by Oracle, NetApp, SonicWall, and Aruba references. Treat this as urgent for any public-facing Struts application. Known exploitation and public exploit references make delayed remediation risky, even though the vulnerable configuration requirements are specific. Prioritize inventory, vendor-confirmed upgrades, and compensating exposure reduction. Mitigation focus: Identify and upgrade Apache Struts deployments in the affected version ranges.; Review Apache S2-057 and vendor advisories for fixed versions and configuration guidance.; Prioritize internet-facing Struts applications and products that bundle Struts..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
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ATT&CK lookup starting points
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Execution behavior lookup
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Open ATT&CK lookupCVE-2018-11776 mapping review
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Open ATT&CK lookup- Severity
- High
- CVSS
- 8.1 (3.1)
- Known Exploited
- Yes
- Published
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CISA KEV status
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H2.25.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
8.1HighVector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- 45367CVE reference · exploit
- 45262CVE reference · exploit
- 45260CVE reference · exploit
- [announce] 20200131 Apache Software Foundation Security Report: 2019CVE reference · mailing-list
- https://www.oracle.com/security-alerts/cpujul2020.htmlCVE reference
- https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.htmlCVE reference
- https://security.netapp.com/advisory/ntap-20181018-0002/CVE reference
- https://cwiki.apache.org/confluence/display/WW/S2-057CVE reference
- https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2018-0012CVE reference
- https://lgtm.com/blog/apache_struts_CVE-2018-11776CVE reference
- https://security.netapp.com/advisory/ntap-20180822-0001/CVE reference
- https://github.com/hook-s3c/CVE-2018-11776-Python-PoCCVE reference
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-11776CVE reference · government-resource
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.