CVE-2025-12627Improper Refresh Token Implementation via User Impersonation Flow in WSO2 Identity Server Enables Continued Unauthorized Actions
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It affects WSO2 Identity Server and 1 other product. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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The user impersonation flow in WSO2 Identity Server fails to properly manage refresh tokens associated with impersonated sessions. This allows an attacker who has obtained an access token for an impersonated user to leverage the refresh token grant to obtain new access tokens, extending their ability to act as the legitimate user. An attacker who gains access to an impersonated user's access token can exploit this weakness to renew their authorization. This results in the continued ability to perform actions on behalf of the actual user, compromising log integrity and traceability by masking the true actor.
- CVSS
- 2.4 LOW (v3.1, CNA)CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N
- Weakness (CWE)
- CWE-613
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- WSO2
- NVD analysis
- Analyzed
- Record last updated
- Aug 6, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
WSO2 WSO2 Identity Server wso2:identity_server (from the name) | from 7.0.0 before 7.0.0.130; from 7.1.0 before 7.1.0.38 | CNA record |
WSO2 WSO2 Carbon OAuth wso2:carbon_oauth (from the name) | from 7.0.26 before 7.0.26.83; from 7.0.259 before 7.0.259.31; from x not affected | CNA record |
wso2 identity_server wso2:identity_server | from 7.0.0 before 7.0.0.130; from 7.1.0 before 7.1.0.38 | NVD |
References
- https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2026/WSO2-2025-4619/vendor-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.