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CVE-2018-11776

Apache Struts versions 2.3 to 2.3.34 and 2.5 to 2.5.16 suffer from possible Remote Code Execution when alwaysSelectFullNamespace is true…

High8.1Known exploitedEPSS 100.0%
Published
Updated
Reserved
Assigned by
apache

Description

Apache Struts versions 2.3 to 2.3.34 and 2.5 to 2.5.16 suffer from possible Remote Code Execution when alwaysSelectFullNamespace is true (either by user or a plugin like Convention Plugin) and then: results are used with no namespace and in same time, its upper package have no or wildcard namespace and similar to results, same possibility when using url tag which doesn't have value and action set and in same time, its upper package have no or wildcard namespace.

Exploited in the wild

CISA lists this vulnerability in its Known Exploited Vulnerabilities catalog as Apache Struts Remote Code Execution Vulnerability.

Added
3 Nov 2021
Fix due (US federal)
3 May 2022
Used by ransomware
Not known

Apply updates per vendor instructions.

Scores

CVSS scores of CVE-2018-11776, by who scored it
Scored byCVSSScoreVector
CISA-ADPADP (enrichment)3.1High8.1CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
NVDNVD · Analyzed3.1High8.1CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (exploitation in 30 days)
100.0% · top 0.1% of all CVEs (5 Nov 2026)
CISA SSVC
Exploitation: active · Automatable: no · Technical impact: total
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The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.1.

Weakness

  • Remote Code Execution
  • CWE-noinfo Not enough information

Affected products

Affected packages

From reviewed advisories of the GitHub Advisory Database.

References (20)

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .