CVE-2026-1728 — Improper Privilege Management in WSO2 Api Control Plane
Tokens issued to a low-privileged user are not sufficiently restricted, allowing them to be used to access product-level Admin REST APIs. Exploitation of this vulnerability allows a low-privileged user to invoke the Admin REST APIs of WSO2 products, potentially leading to full administrative account takeover. This requires the attacker to already possess a low-privileged user account and be able to obtain a valid token for it.
Who exploits it and how urgent it is
A 0–100 score combining confirmed exploitation, ransomware and APT use, public exploits, EPSS and severity.
How the score was calculated
- Technical severity (critical)+10
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.
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.
- Identify exposed assets running the affected vendor/product/version combinations (WSO2 Api Control Plane, WSO2 Api Manager, WSO2 Traffic Manager…).
- The attack is network-based and needs no privileges: restrict exposure (ACLs, VPN, WAF) until patched.
- No fix documented in the sources: reduce exposure and monitor the vendor advisory.
- Search available logs for exploit probes matching the vulnerability class (privilege escalation), errors and authentication anomalies.
Affected scope
Vendor, product and versions as the sources word them.
| Vendor | Product | Versions | Status | Source |
|---|---|---|---|---|
| WSO2 | Api Control Plane | ≥ 4.5.0 and < 4.5.0.49≥ 4.6.0 and < 4.6.0.13 | Vulnerable | NIST National Vulnerability Database |
| WSO2 | Api Manager | ≥ 4.0.0 and < 4.0.0.384≥ 4.1.0 and < 4.1.0.248≥ 4.2.0 and < 4.2.0.188≥ 4.3.0 and < 4.3.0.99≥ 4.4.0 and < 4.4.0.63≥ 4.5.0 and < 4.5.0.48≥ 4.6.0 and < 4.6.0.12 | Vulnerable | NIST National Vulnerability Database |
| WSO2 | Traffic Manager | ≥ 4.5.0 and < 4.5.0.47≥ 4.6.0 and < 4.6.0.12 | Vulnerable | NIST National Vulnerability Database |
| WSO2 | Universal Gateway | ≥ 4.5.0 and < 4.5.0.48≥ 4.6.0 and < 4.6.0.12 | Vulnerable | NIST National Vulnerability Database |
Attack characteristics
The CVSS vector, decoded. It describes the attack, not your exposure to it.
Every base score collected
Sources score independently and may disagree; each row says who scored it and under which version.
| Score | Version | Severity | Expl. | Impact | Scored by |
|---|---|---|---|---|---|
| 9.8 | CVSS 3.1 | Critical | 3.9 | 5.9 | ed10eef1-636d-4fbe-9993-6890dfa878f8 via NIST National Vulnerability Database |
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H (score shown at the top: ed10eef1-636d-4fbe-9993-6890dfa878f8) Weakness MITRE
Weakness class according to MITRE’s CWE catalog.
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).
Timeline
What happened to this CVE, newest first.
- 2026
- Record published
- CVSS changed · 9.8
- Source status changed · → Analyzed
- Record created in this database
- CVE published
Source activity
Repeated readings are counted rather than listed.
- 1× Official description updated · Oct 15, 2026 – Oct 15, 2026
References
1 on the record
Elsewhere on this site
Related CVEs (same products)
- High CVE-2025-12737 OS Command Injection in WSO2 Api Control Plane Sep 3, 2026
- High CVE-2026-3416 Use of Insufficiently Random Values in WSO2 Api Control Plane Sep 3, 2026
- Critical CVE-2026-5430 WSO2 Multiple Products Path Traversal Vulnerability KEV Aug 6, 2026
- Critical CVE-2025-15039 The Conditional Authentication (Adaptive Authentication) script does not correctly… Aug 6, 2026
- Medium CVE-2026-0637 Insertion of Sensitive Information into Log File in WSO2 Api Control Plane Aug 6, 2026
- Medium CVE-2025-13394 Cross-Site Request Forgery (CSRF) in WSO2 Api Control Plane 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 FIRST EPSS score.
- No fixed version, patch or mitigation documented.
- No CISA SSVC assessment.
- 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-2026-1728 is "Improper Privilege Management in WSO2 Api Control Plane", rated Critical. 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 9.8 describes technical severity. 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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