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 (either by…
Browse: All 2018 CVEs · All vendors
- CVSS score
- 8.1 High
- CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H- CISA KEV
- Yes — actively exploited (added 2021-11-03, remediation due 2022-05-03)
- Weakness (CWE)
- CWE-20
- Published
- 2018-08-22
- Last modified
- 2026-06-17
- NVD status
- Analyzed
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.
Affected products
- apache struts
- netapp active iq unified manager
- netapp oncommand insight
- netapp oncommand workflow automation
- netapp snapcenter
- oracle communications policy management
- oracle enterprise manager base platform
- oracle mysql enterprise monitor
Affected ranges per NVD CPE data; confirm exact versions in the vendor advisory.
Required action (CISA)
Apply updates per vendor instructions. Federal remediation deadline: 2022-05-03.
How to prioritize this
This vulnerability is on the CISA KEV list, meaning it is being actively exploited — treat it as urgent regardless of the raw CVSS number. Use the live CVE lookup for the latest NVD data, and the CVSS 3.1 calculator to model your own environmental score. For the actively exploited vulnerabilities that matter this week, read The Exploit HQ daily security brief.
References
- http://packetstormsecurity.com/files/172830/Apache-Struts-Remote-Code-Execution.html
- http://www.arubanetworks.com/assets/alert/ARUBA-PSA-2018-005.txt
- http://www.oracle.com/technetwork/security-advisory/alert-cve-2018-11776-5072787.html
- http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
- http://www.securityfocus.com/bid/105125
- http://www.securitytracker.com/id/1041547
- http://www.securitytracker.com/id/1041888
- https://cwiki.apache.org/confluence/display/WW/S2-057
FAQ
Is CVE-2018-11776 actively exploited?
Yes. CISA added CVE-2018-11776 to its Known Exploited Vulnerabilities (KEV) catalog on 2021-11-03, with a federal remediation deadline of 2022-05-03. A KEV listing means real-world exploitation is confirmed, so patching this should be prioritized above many higher-CVSS bugs that aren't being exploited.
What is the CVSS score of CVE-2018-11776?
CVE-2018-11776 has a CVSS base score of 8.1 (High). Its vector string is CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.
Related vulnerabilities
- CVE-2016-3081 — Apache Struts
- CVE-2013-2251 — Apache Struts
- CVE-2017-9805 — Apache Struts
- CVE-2020-17530 — Apache Struts
- CVE-2017-5638 — Apache Struts
- CVE-2026-34486 — Apache Tomcat
Data source: NVD & CISA KEV. Shown as-is; nothing added. Last generated from NVD data — re-check the live tool for updates.
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