`CVE-2018-11776`

8.1 High Protected by RASP

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.

CWE-20 · Improper input validation

Exploitation Status

Exploited in the wild

Confirmed real-world exploitation.

CVSS E:A

CISA KEV listed Confirmed exploitation in the wild. Added 2021-11-03 · remediation due 2022-05-03 · ransomware use: unknown
CISA Vulnrichment exploitation: active CISA records active exploitation. Automatable: no, technical impact: total.
Indexed PoC 20 indexed Published artifacts you can open, in Exploit-DB, GitHub PoC, Nuclei; first seen 2018-08-23.
EPSS 99.9% chance in 30 days A model prediction, not an observation. Higher than 99.9% of all scored CVEs.

Index	Artifact	Stars	First seen
GitHub PoC	An exploit for Apache Struts CVE-2018-11776	303	2018-08-25
Nuclei	Apache Struts2 S2-057 - Remote Code Execution
Exploit-DB	Apache Struts 2 - Namespace Redirect OGNL Injection (Metasploit)		2018-09-10
GitHub PoC	Working Python test and PoC for CVE-2018-11776, includes Docker lab	123	2018-08-24
Exploit-DB	Apache Struts 2 - Namespace Redirect OGNL Injection (Metasploit)		2018-09-10
GitHub PoC	This tool takes advantage of CVE-2018-11776 and Shodan to perform mass exploitation of verified and vulnerable Apache Struts servers.	56	2018-08-29
Exploit-DB	Apache Struts 2.3 < 2.3.34 / 2.5 < 2.5.16 - Remote Code Execution (1)		2018-08-26
GitHub PoC	Proof of Concept for CVE-2018-11776	21	2018-08-27
Exploit-DB	Apache Struts 2.3 < 2.3.34 / 2.5 < 2.5.16 - Remote Code Execution (2)		2018-08-25
GitHub PoC	Critical Remote Code Execution Vulnerability (CVE-2018-11776) Found in Apache Struts.	17	2019-10-10

Waratek Defense Posture

Protected by RASP

A Waratek agent blocks this today.

Applicable rule: Manual classification assigned status: MITIGATED-BY-SECURE-RULE

Protection full a general security rule for the vulnerability class
Action available security rule
Review human manual-review
Record active

Decided by manual classification : Manual classification of this CVE in the legacy dataset

Finding Manual classification assigned status: MITIGATED-BY-SECURE-RULE

Decided by	`manual classification` : Manual classification of this CVE in the legacy dataset
Finding	Manual classification assigned status: MITIGATED-BY-SECURE-RULE

CVSS

8.1 HIGH v3.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H 3 metrics

VRT selects the newest version's highest entry and publishes it as cvssScore, newest rather than largest because scores are not comparable across versions, and highest rather than first because the first entry is frequently a CNA placeholder scoring 0.0 over NVD's own analysis.

Version Score Band Vector Assigner Type

CVSS 3.1 8.1 HIGH CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H NVD Primary published

CVSS 3.1 8.1 HIGH CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H CISA-ADP Secondary

CVSS 2.0 9.3 no band published AV:N/AC:M/Au:N/C:C/I:C/A:C NVD Primary

Version	Score	Band	Vector	Assigner	Type
CVSS 3.1	8.1	HIGH	`CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H`	NVD	Primary	published
CVSS 3.1	8.1	HIGH	`CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H`	CISA-ADP	Secondary
CVSS 2.0	9.3	no band published	`AV:N/AC:M/Au:N/C:C/I:C/A:C`	NVD	Primary

Affected Software & Releases

🏛️ Oracle CPU Advisories & Products

Advisory	Type	Quarter	Products Oracle named in risk matrix
Oracle Critical Patch Update July 2020 ↗	CPU	2020-Q3	Oracle Enterprise Manager / Reporting Framework (Apache Struts 2) (13.3.0.0, 13.4.0.0)
Oracle Critical Patch Update January 2019 ↗	CPU	2019-Q1	Oracle Communications Applications / Security (Apache Struts 2) (prior to 12.5)
Oracle Critical Patch Update October 2018 ↗	CPU	2018-Q4	Oracle MySQL / Monitoring: General (Apache Struts 2) (3.4.9.4237 and prior, 4.0.6.5281 and prior, 8.0.2.8191 and prior)

Advisory

Type

Quarter

Products Oracle named in risk matrix

Oracle Critical Patch Update July 2020 ↗

CPU

2020-Q3

Oracle Enterprise Manager / Reporting Framework (Apache Struts 2) (13.3.0.0, 13.4.0.0)

Oracle Critical Patch Update January 2019 ↗

CPU

2019-Q1

Oracle Communications Applications / Security (Apache Struts 2) (prior to 12.5)

Oracle Critical Patch Update October 2018 ↗

CPU

2018-Q4

Oracle MySQL / Monitoring: General (Apache Struts 2) (3.4.9.4237 and prior, 4.0.6.5281 and prior, 8.0.2.8191 and prior)

Indexed Oracle Components & Versions

Family	Component	Oracle's version cell (verbatim)	Indexed as
Oracle Communications Applications	Security (Apache Struts 2)	prior to 12.5
Oracle Enterprise Manager	Reporting Framework (Apache Struts 2)	13.3.0.0, 13.4.0.0	13.3.0.0 · 13.4.0.0
Oracle MySQL	Monitoring: General (Apache Struts 2)	3.4.9.4237 and prior, 4.0.6.5281 and prior, 8.0.2.8191 and prior

Family

Component

Oracle's version cell (verbatim)

Indexed as

Oracle Communications Applications

Security (Apache Struts 2)

prior to 12.5

Oracle Enterprise Manager

Reporting Framework (Apache Struts 2)

13.3.0.0, 13.4.0.0

13.3.0.0 · 13.4.0.0

Oracle MySQL

Monitoring: General (Apache Struts 2)

3.4.9.4237 and prior, 4.0.6.5281 and prior, 8.0.2.8191 and prior

☕ Maven Library Packages

Artifact coordinates and fix boundaries from OSV.dev

Package Coordinate Introduced Fixed Last affected

org.apache.struts:struts2-core 2.0.4 2.3.35 unbounded

org.apache.struts:struts2-core 2.5 2.5.17 unbounded

Package Coordinate	Introduced	Fixed	Last affected
`org.apache.struts:struts2-core`	2.0.4	`2.3.35`	unbounded
`org.apache.struts:struts2-core`	2.5	`2.5.17`	unbounded

🖥️ Product CPEs & Version Ranges

9 product(s) over 15 version claims (uncapped)

Source	Vendor	Product	Scheme	Affected Versions
nvd	apache	struts	generic	≥ 2.0.4 and ＜ 2.3.35 · ≥ 2.5.0 and ＜ 2.5.17
nvd	netapp	active iq unified manager	generic	≥ 7.3 · ≥ 9.5
nvd	netapp	oncommand insight	generic	any version
nvd	netapp	oncommand workflow automation	generic	any version
nvd	netapp	snapcenter	generic	any version
nvd	oracle	communications policy management	generic	＜ 12.5.0
nvd	oracle	enterprise manager base platform	generic	13.3.0.0 · 13.4.0.0
nvd	oracle	mysql enterprise monitor	generic	≤ 3.4.9.4237 · ≥ 4.0.0 and ≤ 4.0.6.5281 · ≥ 8.0.0 and ≤ 8.0.2.8191
osv	org.apache.struts	struts2-core	generic	≥ 2.0.4 and ＜ 2.3.35 · ≥ 2.5 and ＜ 2.5.17

Source

Vendor

Product

Scheme

Affected Versions

nvd

apache

struts

generic

≥ 2.0.4 and ＜ 2.3.35 · ≥ 2.5.0 and ＜ 2.5.17

nvd

netapp

active iq unified manager

generic

≥ 7.3 · ≥ 9.5

nvd

netapp

oncommand insight

generic

any version

nvd

netapp

oncommand workflow automation

generic

any version

nvd

netapp

snapcenter

generic

any version

nvd

oracle

communications policy management

generic

＜ 12.5.0

nvd

oracle

enterprise manager base platform

generic

13.3.0.0 · 13.4.0.0

nvd

oracle

mysql enterprise monitor

generic

≤ 3.4.9.4237 · ≥ 4.0.0 and ≤ 4.0.6.5281 · ≥ 8.0.0 and ≤ 8.0.2.8191

osv

org.apache.struts

struts2-core

generic

≥ 2.0.4 and ＜ 2.3.35 · ≥ 2.5 and ＜ 2.5.17

Manual classification context

A reviewer manually classified this CVE. The retained record includes the labels and products below, but not the reviewer's reasoning.

## Manual Classification Context **Labels:** HTTP, SECURITY (APACHE STRUTS 2), REPORTING FRAMEWORK (APACHE STRUTS 2), NO AUTH REMOTE EXPLOIT, MONITORING: GENERAL (APACHE STRUTS 2) **Products:** APACHE STRUTS 2

References

URL	Tags
https://github.com/apache/struts/commit/6e87474f9ad0549f07dd2c37d50a9ccd0977c6e	WEB
https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html	WEB
https://www.oracle.com/security-alerts/cpujul2020.html	WEB
https://www.exploit-db.com/exploits/45367	WEB
https://www.exploit-db.com/exploits/45262	WEB
https://www.exploit-db.com/exploits/45260	WEB
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-11776	WEB
https://web.archive.org/web/20201208145803/https://securitytracker.com/id/1041547	WEB
https://web.archive.org/web/20200807025819/http://www.securitytracker.com/id/1041888	WEB
https://web.archive.org/web/20180822160726/http://www.securityfocus.com/bid/105125	WEB

URL

Timeline

Published 2018-08-22 Last modified 2026-06-17

Published	2018-08-22	By the CVE Program.
NVD record modified	2026-06-17	NVD's own last-modified date for this record.

Published

2018-08-22

By the CVE Program.

NVD record modified

2026-06-17

NVD's own last-modified date for this record.

Pipeline policy audit (5 of 21 rules evaluated)

5 of 21 rules ran. The rest were never reached, because an earlier stage settled the CVE, a distinct claim from a rule that ran and found nothing.

# Rule Outcome Status Detail

identity: Does this identifier describe a vulnerability at all? first match wins

1 rejected no-match CVE Program withdrawal of this identifier

scope: Is the vulnerability ARMR's to address? first match wins

2 armr-patch-file no-match An ARMR patch file on disk for this CVE

3 armr-secure-rule-file no-match An ARMR security-rule template on disk for this CVE

4 manual-classification no-match A researcher's recorded decision for this specific CVE

5 manual classification decided it matched Protected by RASP Found in legacy manual classifications

6 non-java-upstream not-reached A root cause in non-Java code: an OS kernel, a C library, or a bundled runtime

7 oracle-component not-reached The defect being in a component of a tracked product the agent does not reach: JavaFX, the Java SE installer, the native WebLogic proxy plug-in. Oracle gives these no CPE of their own and names them only in the description.

8 osv-maven not-reached An OSV.dev record of this CVE affecting a package published to Maven Central

9 cna-maven-package not-reached An affected Maven artifact named by the CNA itself

10 known-cpe-product not-reached An NVD CPE naming a product ARMR tracks

11 cna-cpe-product not-reached A CPE the CNA published naming a tracked product. Oracle publishes these on advisory day, months before NVD.

12 oracle-advisory-family not-reached A tracked product family named in Oracle's own risk matrix. CPE cannot carry a suite name, only a module.

13 non-deployable-product not-reached The only affected product being a sealed appliance image, where Java runs but no -javaagent can be attached

14 unmatched-product not-reached No tracked product matched above, and none present at all

disposition: What do we do about one that is? cumulative: every rule gets a turn

15 patch-hint not-reached A reference pointing at the upstream fix: a commit, a PR, a Red Hat bug

16 open-source-maven not-reached The affected package being open source on Maven, so the fix can be read

17 poc-derivable not-reached An indexed exploit to reverse-engineer, where there is no source to read

18 no-exploit not-reached With no fix path, a public exploit, or a CISA record of one

19 secure-rule-match not-reached A vulnerability class already blocked by an ARMR security rule

20 below-action-threshold not-reached Medium or Low severity, no KEV listing, no PoC clearing the evidence bar, no CISA verdict, no Oracle advisory

21 no-exploit-published not-reached A published working exploit for this candidate, not only a proof of concept, a forecast, or nothing at all

Raw stored JSON document for this CVE ↗ · NVD ↗ · CVE.org ↗