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Vulnerabilities/CVE-2016-1182Public Intelligence Dossier
Source: apache · Limited verification•Last verified: •Collection Degraded
CVE-2016-1182Unknown / EvaluatingHIGH (raw)CVSS 8.2CWE-20

ActionServlet.java in Apache Struts 1 1.x through 1.3.10 does not properly restrict the Validator configuration, which allows remote attackers to conduct cross-site scripting (XSS) attacks or cause a denial of service via crafted input, a related issue to CVE-2015-0899.

Published: 05 Jul 2016•Last updated: 15 Oct 2026, 09:47 PM IST•Source identifier: vultures@jpcert.or.jp
Dossier completeness: source-provided sections 2 / 3 · rule guidance available. Missing source facts count as incomplete.
Official source
CISA KEV catalog
Unknown
KEV status was not determined.
CVSS score
8.2HIGH (raw)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
Metric sourcenvd@nist.gov
EPSS probability
25.7%0.257
Percentile98th
Weakness type
CWE-20
No further CWE recorded
Remediation
Patch status unknown
No fixed version or KB recorded

Why It Matters

Analysis dossier

Why It Matters

ActionServlet.java in Apache Struts 1 1.x through 1.3.10 does not properly restrict the Validator configuration, which allows remote attackers to conduct cross-site scripting (XSS) attacks or cause a denial of service via crafted input, a related issue to CVE-2015-0899.

SOC priority

High

Actively exploited

Unknown

Publicly disclosed

Unknown

Risk basis: SOC ecosystem technology relevance; HIGH severity; No confirmed exploitation signal in current enrichment

Affected Products & Remediation

1 source-backed product
Affected products and versions (source)
  • apache struts · 1.0; 1.0.1; 1.0.2; 1.1; 1.2.0; 1.2.1; 1.2.2; 1.2.3; 1.2.4; 1.2.5; 1.2.6; 1.2.7; 1.2.8; 1.2.9; 1.3.5; 1.3.6; 1.3.7; 1.3.8; 1.3.9; 1.3.10 · NVD CPE · Source
Recorded patch / KBNot provided by source

Vendor or catalog guidance (source)

Not provided by source

Known exploitation (source facts)

Only what a source states. Unknown means no source has said either way; it is not "not exploited".

CISA KEV
Unknown
Exploited (source statement)
Unknown
Publicly disclosed (source)
Unknown

Suggested hunting (rule-based inference)

SecOps Signal recommendation (rule-based inference). These steps are hunting hypotheses from the vulnerability class; they do not state or imply that exploitation occurred here or anywhere.

Matched network-unauthenticated (CVSS AV:N, CVSS PR:N, CVSS UI:N)

Exposure

  1. Identify devices reporting this CVE and note which expose the affected service to untrusted networks.Telemetry: DeviceTvmSoftwareVulnerabilities · A network-reachable, no-privilege vector makes internet-facing instances the first exposure question. · Rule network-unauthenticated

Exploitation evidence

  1. Review inbound connections to the affected service from unexpected sources since the advisory date.Telemetry: DeviceNetworkEvents · Hunting hypothesis from the CVSS vector; it does not show that exploitation occurred. · Rule network-unauthenticated

Response

  1. Confirm the source-stated update is installed and the CVE is no longer reported.Telemetry: DeviceTvmSoftwareVulnerabilities · A follow-up inventory check verifies remediation. · Rule network-unauthenticated

CISA KEV Record

CISA KEV status was not determined for this record.

Change History & Source Data

— No recorded material change

CNA / source
vultures@jpcert.or.jp
Record status · verification
UPDATED · NVD API
CPE
cpe:2.3:a:apache:struts:1.0:*:*:*:*:*:*:*, cpe:2.3:a:apache:struts:1.0:beta1:*:*:*:*:*:*, cpe:2.3:a:apache:struts:1.0:beta2:*:*:*:*:*:*, cpe:2.3:a:apache:struts:1.0:beta3:*:*:*:*:*:*, cpe:2.3:a:apache:struts:1.0.1:*:*:*:*:*:*:*, cpe:2.3:a:apache:struts:1.0.2:*:*:*:*:*:*:*, cpe:2.3:a:apache:struts:1.1:*:*:*:*:*:*:*, cpe:2.3:a:apache:struts:1.1:b1:*:*:*:*:*:*, cpe:2.3:a:apache:struts:1.1:b2:*:*:*:*:*:*, cpe:2.3:a:apache:struts:1.1:b3:*:*:*:*:*:*

Evidence & Provenance

3 public sources
nvd.nist.govSource recordbugzilla.redhat.comSource recordgithub.comSource record

Linked by the query's stored exact CVE association. Review required tables and validation status before use.

Detection Hunting Query
Target: DeviceTvmSoftwareVulnerabilities•Defender XDR
Detect endpoints exposed to CVE-2016-1182
Purpose: Exposure assessment (Category: Exposure Check)Why linked: Query metadata names CVE-2016-1182
DeviceTvmSoftwareVulnerabilities| where CveId == "CVE-2016-1182"| project DeviceId, DeviceName, OSPlatform, OSVersion, SoftwareVendor, SoftwareName, SoftwareVersion, CveId, VulnerabilitySeverityLevel, RecommendedSecurityUpdate, RecommendedSecurityUpdateId| sort by VulnerabilitySeverityLevel desc
Schema Checked · Not runtime validatedSource: SecOps Signal deterministic template · Limited verificationStatic screening: Passed structure and schema checks; tenant execution is not verified.
Open KQL Library

Correlated briefings

— No published briefing references this CVE

SecOps Signal surfaces public advisory facts only. A missing value means the source has not published it, not that your environment is unaffected. No tenant inventory is connected.