Vulnerability in Apache Struts

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 user or a plugin like Convention Plugin) and then: results are used with no namespace and i…

EPSS: 1.000 (100.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

CISA KEV (Known Exploited Vulnerabilities)

This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.

BOD 22-01 due date: .

Required action: Apply updates per vendor instructions.

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2018-11776?
CVE-2018-11776 is a high-severity vulnerability in Apache Struts. CVSS score: 8.1/10. Published 2018-08-22.
How severe is CVE-2018-11776?
High severity. CVSS v3 base score is 8.1 out of 10.
Is CVE-2018-11776 known to be exploited?
Yes. CVE-2018-11776 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2021-11-03), indicating it is being actively exploited. 203 public proof-of-concept repositories are indexed.