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CVE-2025-12627: The user impersonation flow in WSO2 Identity Server fails to properly manage refresh tokens associated with im

11
Routine
LOW 2.4UPGRADE

CVE-2025-12627 is a low-severity flaw (CVSS 2.4) affecting identity server. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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 authori

Why this priority

  • No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score2.4 (Low)
Attack vectorAdjacent network
Attack complexityLow
Privileges neededHigh
User interactionNone
EPSS exploit chance0.2% (top 90%)
CISA exploited listNo
WeaknessCWE-613
Published2026-08-06
Last modified2026-09-29
Publisher (CNA): WSO2 LLC · Vendor: wso2

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Last updated 2026-09-29 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

wso2 identity server UPGRADE
Affected: >= 7.0.0 and < 7.0.0.130 · >= 7.1.0 and < 7.1.0.38
Fixed in: 7.0.0.130, 7.1.0.38
Safe to downgrade to: a release before 7.0.0
1. Check installed version
apt-cache policy identity-server || rpm -q identity-server || identity-server --version
2. UPGRADE to 7.0.0.130 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade identity-server
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade identity-server
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
3. If no update is available yet, DOWNGRADE to a release before 7.0.0 (Debian / Ubuntu)
apt-cache madison identity-server sudo apt install identity-server=<VERSION_BEFORE_7.0.0> sudo apt-mark hold identity-server
3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list identity-server sudo dnf downgrade identity-server-<VERSION_BEFORE_7.0.0> sudo dnf versionlock add identity-server
Downgrade risk
Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.
After downgrade
Restart the service, and keep the package held until a fixed release ships.
Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-12627?

identity server: upgrade to 7.0.0.130, 7.1.0.38. Exact commands for each OS are on this page.

Is CVE-2025-12627 being exploited?

CVE-2025-12627 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-12627 affect?

CVE-2025-12627 affects identity server. Severity is low (CVSS 2.4). 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 tok

How urgent is CVE-2025-12627?

Priority 11/100. No elevated risk signals yet.

Related CVEs

References

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