CVE Intelligence
High File handling

CVE-2025-13590 — Authenticated arbitrary file upload via a System REST API requiring administrator permission.

A malicious actor with administrative privileges can upload an arbitrary file to a user-controlled location within the deployment via a system REST API. Successful uploads may lead to remote code execution. By leveraging the vulnerability, a malicious actor may perform Remote Code Execution by uploading a specially crafted payload.

Published Feb 19, 2026 · Updated Oct 13, 2026 · Sources: NIST National Vulnerability Database, CVE Program (cve.org) e CISA ADP · CNA: WSO2

Who exploits it and how urgent it is

A 0–100 score combining confirmed exploitation, ransomware and APT use, public exploits, EPSS and severity.

No exploitation signal in the sources consulted so far.
How the score was calculated
  • EPSS 0.7% (30-day exploitation probability)+8
  • Technical severity (high)+6

The score orders the patch queue; it does not replace your asset context (internet exposure, criticality, compensating controls).

Triage

Is it exploited, how likely is exploitation, what does it touch, and how severe do the sources call it.

Exploitation
Not confirmed
Not in CISA KEV — an absence of record, not proof it is unexploited.
EPSS FIRST
0.72%
ahead of 53% of scored CVEs · Oct 15, 2026
Affects
WSO2
Api Control Plane and 4 more
CVSS base
7.2
High · 3 source(s)
Prioritization reference: 9.1 provisional

CISA SSVC assessment CISA

Three decision points CISA publishes for the CVEs it assesses (SSVC 2.0.3). A stakeholder decision, not a severity score.

Exploitation
None
none · proof-of-concept · active
Automatable
No
can an attacker script the kill-chain steps
Technical impact
Total
partial · total control of the vulnerable component

Remediation

Fixes and mitigations documented by the sources — linked to the original advisory.

No fix documented by the sources we poll. That does not mean none exists: check the vendor advisory.

First 24 hours

Ordered from the record’s own fields — exposure first, because you cannot patch what you have not found. A rule-generated starting point.

  1. Identify exposed assets running the affected vendor/product/version combinations (WSO2 Api Control Plane, WSO2 Api Manager, WSO2 Org.wso2.carbon.apimgt:org.wso2.carbon.apimgt.impl…).
  2. No fix documented in the sources: reduce exposure and monitor the vendor advisory.
  3. Search available logs for exploit probes matching the vulnerability class (file handling), errors and authentication anomalies.

Affected scope

Vendor, product and versions as the sources word them.

VendorProductVersionsStatusSource
WSO2 Api Control Plane version 4.6.0version 4.5.0 Vulnerable NIST National Vulnerability Database
WSO2 Api Control Plane ≥ 4.5.0 and < 4.5.0.39≥ 4.6.0 and < 4.6.0.3 Vulnerable CVE Program (cve.org) e CISA ADP
WSO2 Api Manager ≥ 4.6.0 and < 4.6.0.3≥ 4.5.0 and < 4.5.0.38≥ 4.4.0 and < 4.4.0.55≥ 4.3.0 and < 4.3.0.91≥ 4.2.0 and < 4.2.0.179 Vulnerable CVE Program (cve.org) e CISA ADP
WSO2 Api Manager version 4.5.0version 4.4.0version 4.3.0version 4.2.0version 4.6.0 Vulnerable NIST National Vulnerability Database
WSO2 Org.wso2.carbon.apimgt:org.wso2.carbon.apimgt.impl ≥ 9.32.147 and < 9.32.147.2≥ 9.31.86 and < 9.31.86.100≥ 9.30.67 and < 9.30.67.133≥ 9.29.120 and < 9.29.120.210≥ 9.28.116 and < 9.28.116.391 Vulnerable CVE Program (cve.org) e CISA ADP
WSO2 Traffic Manager ≥ 4.6.0 and < 4.6.0.3≥ 4.5.0 and < 4.5.0.37 Vulnerable CVE Program (cve.org) e CISA ADP
WSO2 Traffic Manager version 4.6.0version 4.5.0 Vulnerable NIST National Vulnerability Database
WSO2 Universal Gateway version 4.6.0version 4.5.0 Vulnerable NIST National Vulnerability Database
WSO2 Universal Gateway ≥ 4.5.0 and < 4.5.0.37≥ 4.6.0 and < 4.6.0.3 Vulnerable CVE Program (cve.org) e CISA ADP

Attack characteristics

The CVSS vector, decoded. It describes the attack, not your exposure to it.

Attack vector
Network
Attack complexity
Low
Privileges required
High
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Every base score collected

Sources score independently and may disagree; each row says who scored it and under which version.

ScoreVersionSeverityExpl.ImpactScored by
9.1 CVSS 3.1 Critical 2.3 6.0 ed10eef1-636d-4fbe-9993-6890dfa878f8 via NIST National Vulnerability Database
9.1 CVSS 3.1 Critical — — WSO2 via CVE Program (cve.org) e CISA ADP
7.2 CVSS 3.1 High 1.2 5.9 nvd@nist.gov via NIST National Vulnerability Database
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H (score shown at the top: nvd@nist.gov)
Scoring entities (NIST, CNA, ADP) score independently; each score is shown with its origin. For prioritization we use 9.1 (ed10eef1-636d-4fbe-9993-6890dfa878f8 via NIST National Vulnerability Database) as a conservative provisional reference — not a definitive official score.

Weakness MITRE

Weakness class according to MITRE’s CWE catalog.

CWE-434 · Unrestricted Upload of File with Dangerous Type

Other CVEs with this weakness →

EPSS over time FIRST

Oct 13, 2026 → Oct 15, 2026 · 3 reading(s) · max 0.72%

Detection

Read off the CVSS vector and the weakness class. Starting points, not tested rules.

  • Prioritize edge telemetry for the network-reachable component (proxy, WAF, IDS/IPS).
  • Monitor file creation in web directories and paths with traversal sequences (../).
web/proxy/WAF logsnetwork IDS/IPSfile integrity (FIM)endpoint telemetry (EDR)

Timeline

What happened to this CVE, newest first.

  • 2026
  • Affected products added · wso2/wso2 api manager, wso2/wso2 api control plane, wso2/wso2 universal gateway, wso2/wso2 traffic manager, wso2/org.wso
    Oct 13, 2026 · CVE Program (cve.org) e CISA ADP
  • SSVC assessment updated
    Oct 13, 2026 · CVE Program (cve.org) e CISA ADP
  • Record published
    Oct 13, 2026
  • CVSS changed · 7.2
    Oct 13, 2026 · NIST National Vulnerability Database
  • Source status changed · → Modified
    Oct 13, 2026 · NIST National Vulnerability Database
  • Record created in this database
    Oct 13, 2026 · NIST National Vulnerability Database
  • CVE published
    Feb 19, 2026 · WSO2

Source activity

Repeated readings are counted rather than listed.

  • 1× Official description updated · Oct 13, 2026 – Oct 13, 2026

References

1 on the record

Elsewhere on this site

WSO2
every CVE for this vendor
File handling
same class
CWE-434
other pages naming this weakness

Related CVEs (same products)

  • CVE-2025-5802 Username Enumeration via Self Registration Flow in Multiple WSO2 Products Allows User Account Discovery Sep 15, 2026
  • CVE-2026-4103 Cross-Site Scripting via HTML Sanitization in WSO2 Publisher and Developer Portals Allows Malicious Script Execution Sep 14, 2026
  • CVE-2026-3096 Reverse Tabnabbing via New Tab Navigation in Multiple WSO2 Products Allows Phishing and Credential Theft Sep 10, 2026
  • CVE-2025-12737 Arbitrary Code Execution via Administrative Operations in Multiple WSO2 Products Allows Remote Code Execution Sep 3, 2026
  • CVE-2026-3416 Predictable Pseudorandom Number Generation via Webhook HMAC Secret Generation in Multiple WSO2 Products Allows Forged Event Payloads Sep 3, 2026
  • CVE-2026-3418 Arbitrary File Upload via System REST API in Multiple WSO2 Products Allows Remote Code Execution Aug 6, 2026

Not in any source we poll

Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.

  • No fixed version, patch or mitigation documented.
  • No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
  • No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
  • No exploit packet captures, log samples, or incident case IDs supplied.

Answered from this record

Text assembled only from the fields above — no additional claims.

What should defenders know first?

CVE-2025-13590 is "Authenticated arbitrary file upload via a System REST API requiring administrator permission.", rated High. It affects Api Control Plane (WSO2); versions are in the scope table. It is not in CISA KEV, which does not rule out exploitation. CVSS 7.2 describes technical severity. EPSS 0.72% estimates the probability of exploitation in 30 days; neither replaces your asset context. First verify whether exposed or business-critical assets run the affected versions, apply vendor fixes or mitigations, and preserve logs for review.

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