CVE-2019-0230
CriticalExploitedPublic exploitstruts2: possible RCE due to forced double OGNL evaluation when evaluated on raw user input in tag attributes
Published Apr 21, 2021 · Updated Jul 8, 2026 · Also known as GHSA-wp4h-pvgw-5727, TR-20-1024
Key Facts
Patch immediately- CVE-2019-0230 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting Struts (Apache), Communications Policy Management (Oracle), Financial Services Data Integration Hub (Oracle) and 3 more products.
- It is exploited in the wild, listed in Industry KEV feed since Sep 14, 2020. Public exploit code is available.
- EPSS estimates a 97% probability of exploitation in the next 30 days.
- Fixed versions are available, including Struts <=2.5.20, Mysql Enterprise Monitor <=8.0.23, org.apache.struts:struts2-core 2.5.22.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3.1
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
97%
Higher than 99.8% of all scored CVEs
Exploited in the wild
Yes
1 catalog listing
Public exploit code
Available
Proof-of-concept or weaponized module
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Description
Apache Struts 2.0.0 to 2.5.20 forced double OGNL evaluation, when evaluated on raw user input in tag attributes, may lead to remote code execution.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| Industry KEV feed | Sep 14, 2020 | n/a | Not reported |
Required action: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
Affected Products
8 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| StrutsApache | >= Apache Struts 2.0.0 to 2.5.20 | 2.5.20 |
| Communications Policy ManagementOracle | 12.5.0 | n/a |
| Financial Services Data Integration HubOracle | 8.0.3, 8.0.6 | n/a |
| Financial Services Market Risk Measurement And ManagementOracle | 8.0.6 | n/a |
| Mysql Enterprise MonitorOracle | See advisory | 8.0.23 |
Patched Releases
Struts
<=2.5.20
Mysql Enterprise Monitor
<=8.0.23
org.apache.struts:struts2-core
2.5.22
Timeline
Added to Industry KEV feed
Sep 14, 2020
Publicly disclosed
Apr 21, 2021
Last updated
Jul 8, 2026
Weakness Type
- CWE-20 Improper Input Validation
- CWE-915 Improperly Controlled Modification of Dynamically-Determined Object Attributes
- CWE-1321 Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
References
- advisoryhttps://cwiki.apache.org/confluence/display/ww/s2-059
- advisoryhttps://cwiki.apache.org/confluence/display/WW/S2-061
- advisoryGHSA advisory
- advisoryhttps://nvd.nist.gov/vuln/detail/CVE-2019-0230
- advisoryhttps://us-cert.cisa.gov/ncas/current-activity/2020/12/08/apache-releases-security-update-apache-struts-2
FAQ
Common Questions.
Apache Struts 2.0.0 to 2.5.20 forced double OGNL evaluation, when evaluated on raw user input in tag attributes, may lead to remote code execution.
Affected: Struts (Apache) versions >= Apache Struts 2.0.0 to 2.5.20; Communications Policy Management (Oracle) versions 12.5.0; Financial Services Data Integration Hub (Oracle) versions 8.0.3, 8.0.6, among others. The full list is in the CVE brief.
It is exploited in the wild, listed in Industry KEV feed since Sep 14, 2020.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including Struts <=2.5.20, Mysql Enterprise Monitor <=8.0.23, org.apache.struts:struts2-core 2.5.22.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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