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CVE-2026-1728

Wso2 API Manager privilege escalation

9.8 CRITICALEPSS 0.48%
  1. Published6 Aug 2026

Description

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.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Wso2 API Control Plane≥ 4.5.0 < 4.5.0.49 · ≥ 4.6.0 < 4.6.0.13
Wso2 API Manager≥ 4.0.0 < 4.0.0.384 · ≥ 4.1.0 < 4.1.0.248 · ≥ 4.2.0 < 4.2.0.188 · ≥ 4.3.0 < 4.3.0.99
Wso2 Traffic Manager≥ 4.5.0 < 4.5.0.47 · ≥ 4.6.0 < 4.6.0.12
Wso2 Universal Gateway≥ 4.5.0 < 4.5.0.48 · ≥ 4.6.0 < 4.6.0.12

Remediation

Fixed in
Wso2 API Control Plane≥ 4.5.0.49
Wso2 API Manager≥ 4.0.0.384
Wso2 Traffic Manager≥ 4.5.0.47
Wso2 Universal Gateway≥ 4.5.0.48

References

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Frequently asked

Is CVE-2026-1728 being actively exploited?

CVE-2026-1728 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.48%.

How severe is CVE-2026-1728?

CVE-2026-1728 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 0.48% probability of exploitation.

Which products are affected by CVE-2026-1728?

Affected products include Wso2 API Control Plane, Wso2 API Manager, Wso2 Traffic Manager, Wso2 Universal Gateway.

How do I fix CVE-2026-1728?

Upgrade affected software to a fixed version, for example Wso2 API Control Plane 4.5.0.49, Wso2 API Manager 4.0.0.384, Wso2 Traffic Manager 4.5.0.47 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-1728 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.