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CVE-2018-11776

Published: Aug 22, 2018Updated: Oct 27, 2025 Sources: CVE List NVD GHSA BDUNVD-CWE-noinfo
NVD MITRE
8.1CVSSHIGH
EPSS Score
100.0%
Top 0.0%
CISA KEV
Active Exploitation
Since Nov 3, 2021
Exploits
8 Known
Remediation
Patch Available
Am I actually vulnerable?1 Nuclei template available — see how to check your systems. How to verify

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.

CVSS Vector Breakdown

AV:NAC:HPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

NVD-CWE-noinfo

Affected Products

strutsapache
LibraryLibrary
OSS Libraries / web-framework
active iq unified managernetappHardware Firmware
oncommand insightnetappHardware Firmware
oncommand workflow automationnetappHardware Firmware
snapcenternetappHardware Firmware
apacheoss-projectUSWeb & CMS Pluginsaka apache http server, apache httpd
netappcommercialUSHardware Firmware
and 6 more affected products View all →

Exploitability

CISA Known Exploited Vulnerability
Added to KEV:Nov 3, 2021
Remediation due:May 3, 2022

Required action: Apply updates per vendor instructions.

8 exploit sources identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available

References

http://packetstormsecurity.com/files/172830/Apache-Struts-Remote-Code-Execution.html
packetstormsecurity.com
http://www.arubanetworks.com/assets/alert/ARUBA-PSA-2018-005.txt
arubanetworks.com
http://www.oracle.com/technetwork/security-advisory/alert-cve-2018-11776-5072787.html
oracle.com
and 31 more references View all →

Timeline

Published
Aug 22, 2018
Added to CISA KEV
Nov 3, 2021
Last Updated
Oct 27, 2025

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