An access permission override in Apache Struts 2.0.0 to 2.5.20 may cause a Denial of Service when performing a file upload.
Noroxi assessment
Priority: Plan (action score 50/100)
- The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
- Probability of exploitation in the next 30 days: 66.1% (FIRST EPSS); higher than 99.2% of all records.
- Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
- Fixed version: org.apache.struts:struts2-core (Maven) 2.5.22.
- Mentioned 5 times in Turkish national cyber security advisories (siberguvenlik.gov.tr).
Add it to your regular patch cycle. Upgrade to org.apache.struts:struts2-core (Maven) 2.5.22 or later.
Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it
Primary sources: NVD · CVE.org · FIRST EPSS
- Published
- Sep 14, 2020
- Updated
- Jun 16, 2026
- EPSS
- 66.1% · 99th percentile
- CWE
- CWE-281
Report tools
Action score
50
Plan
Add it to your regular patch cycle.
- CVSS
- 30 / 40 · 7.5 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 20 / 30 · 66.1%
Get told when this record changes
- Not in KEV: no record of exploitation in the wild
- No public exploit code on record
- A fix has been released
If any of these changes, we'll tell you in the daily email digest.
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Noroxi analysis
What does it mean in your environment?
The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.
We use this product, ask for helpAffected systems
Is your version affected?
Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.
| Vendor | Product | CPE |
|---|---|---|
| apache | struts | cpe:2.3:a:apache:struts |
| oracle | communications policy management | cpe:2.3:a:oracle:communications_policy_management |
| oracle | financial services data integration hub | cpe:2.3:a:oracle:financial_services_data_integration_hub |
| oracle | financial services market risk measurement and management | cpe:2.3:a:oracle:financial_services_market_risk_measurement_and_management |
| oracle | mysql enterprise monitor | cpe:2.3:a:oracle:mysql_enterprise_monitor |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- apache struts2.0.0 and later · up to 2.5.20 inclusive
- oracle communications policy management12.5.0
- oracle financial services data integration hub8.0.3
- oracle financial services data integration hub8.0.6
- oracle financial services market risk measurement and management8.0.6
- oracle mysql enterprise monitorup to 8.0.23 inclusive
Versions reported by the vendor
Affected version ranges reported by the assigning authority (apache). Independent of NVD's CPE analysis and usually ahead of it.
n/a Apache Struts
- Apache Struts 2.0.0 to 2.5.20affected
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Maven | org.apache.struts:struts2-core | from 2.0.0 · before 2.5.22 | 2.5.22 |
Same product
apache: all recordsOther highest-scoring records for the same primary product.
- CVE-2017-9791The Struts 1 plugin in Apache Struts 2.1.x and 2.3.x might allow remote code execution via a malicious field value passed in a raw message tKEV99Now
- CVE-2017-5638The Jakarta Multipart parser in Apache Struts 2 2.3.x before 2.3.32 and 2.5.x before 2.5.10.1 has incorrect exception handling and error-mesKEV99Now
- CVE-2020-17530Forced OGNL evaluation, when evaluated on raw user input in tag attributes, may lead to remote code execution.KEV98Now
Published before and after this one in the same product
- ← EarlierCVE-2015-2992Feb 27, 2020 · Apache Struts before 2.3.20 has a cross-site scripting (XSS) vulnerability.26Monitor
- ← EarlierCVE-2019-0230Sep 14, 2020 · 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 exe68This week
- Later →CVE-2021-31805Apr 12, 2022 · Forced OGNL evaluation, when evaluated on raw not validated user input in tag attributes, may lead to RCE.65This week
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| Maven:org.apache.struts:struts2-core | 2.5.22 | Package registry (OSV) |
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
National notice (Türkiye Cybersecurity Directorate / USOM)
Official security notices citing this record; remediation advice is on the agency's page.
- TR-21-0331 · Apr 21, 2021(Oracle Güvenlik Uyarısı Yayınladı)
- TR-20-963 · Nov 18, 2020(IBM Ürünleri Zafiyeti)
- TR-20-927 · Nov 11, 2020(SAP Güvenlik Güncellemeleri Yayınladı)
- TR-20-780 · Sep 24, 2020(IBM Netezza Host Management Güvenlik Güncellemesi)
- TR-20-613 · Aug 17, 2020(Apache, Struts için Güvenlik Güncellemeleri Yayınladı)
Technical details
Attack conditions
- Anyone who can reach it over the internet can trigger it.
- No account or password is required.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- none
- Integrity
- none
- Availability
- high · the service can be disrupted
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- None
- Integrity impact
- None
- Availability impact
- High
Weakness class (CWE)
CWE-281 · Improper Preservation of PermissionsCVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
MITRE has no CAPEC/ATT&CK mapping for this CWE.
Change log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
Show all references (4 more)Show less
Vendor advisories and official records. Exploit/PoC links are deliberately left out.