Critical severity · published Aug 6, 2026
CVE-2026-1728
Privilege Escalation via System REST APIs in Multiple WSO2 Products Permits Admin Account Takeover
9.8
CVSS
0.5%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 41% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
WA
WSO2 API Control Plane · WSO2
4.5.0 before 4.5.0.49; 4.6.0 before 4.6.0.13 · source: vendor
WA
WSO2 API Manager · WSO2
4.0.0 before 4.0.0.384; 4.1.0 before 4.1.0.248; 4.2.0 before 4.2.0.188; 4.3.0 before 4.3.0.99; 4.4.0 before 4.4.0.63; 4.5.0 before 4.5.0.48; +1 more · source: vendor
WC
WSO2 Carbon API Manager Rest API Common Functions · WSO2
9.0.174 before 9.0.174.550; 9.28.116 before 9.28.116.404; 9.29.120 before 9.29.120.221; 9.30.67 before 9.30.67.146; 9.31.86 before 9.31.86.130; 9.32.147 before 9.32.147.26 · source: vendor
WC
WSO2 Carbon API Manager Rest API Utility · WSO2
9.20.74 before 9.20.74.392 · source: vendor
WT
WSO2 Traffic Manager · WSO2
4.5.0 before 4.5.0.47; 4.6.0 before 4.6.0.12 · source: vendor
WU
WSO2 Universal Gateway · WSO2
4.5.0 before 4.5.0.48; 4.6.0 before 4.6.0.12 · source: vendor
AC
Api Control Plane · Wso2
4.5.0 before 4.5.0.49; 4.6.0 before 4.6.0.13 · source: NVD
AM
Api Manager · Wso2
4.0.0 before 4.0.0.384; 4.1.0 before 4.1.0.248; 4.2.0 before 4.2.0.188; 4.3.0 before 4.3.0.99; 4.4.0 before 4.4.0.63; 4.5.0 before 4.5.0.48; +1 more · source: NVD
TM
Traffic Manager · Wso2
4.5.0 before 4.5.0.47; 4.6.0 before 4.6.0.12 · source: NVD
UG
Universal Gateway · Wso2
4.5.0 before 4.5.0.48; 4.6.0 before 4.6.0.12 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-1728
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-1728
Vendor Advisory
https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2026/WSO2-2026-5077/
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