How severe is CVE-2025-12107?

CVE-2025-12107 has a CVSS 3.x base score of 8.4, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-12107 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-12107?

CVE-2025-12107 affects Wso2 Identity Server. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-12107?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2025-12107 have an EU (EUVD) identifier?

Yes. CVE-2025-12107 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-207675.

When was CVE-2025-12107 published?

CVE-2025-12107 was published on 2026-02-19 and last updated on 2026-06-17.

CVE-2025-12107

CVE-2025-12107 is a high-severity vulnerability in Wso2 Identity Server with a CVSS 3.x base score of 8.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-1336.

Key facts

Severity: High (CVSS 3.x base score 8.4)
EPSS exploit prediction: 1% (45th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-207675
Weakness: CWE-1336
Affected product: Wso2 Identity Server
Published: 2026-02-19
Last modified: 2026-06-17

Description

Due to the use of a vulnerable third-party Velocity template engine, a malicious actor with admin privilege may inject and execute arbitrary template syntax within server-side templates. Successful exploitation of this vulnerability could allow a malicious actor with admin privilege to inject and execute arbitrary template code on the server, potentially leading to remote code execution, data manipulation, or unauthorized access to sensitive information.

Frequently asked questions

What is CVE-2025-12107?: Due to the use of a vulnerable third-party Velocity template engine, a malicious actor with admin privilege may inject and execute arbitrary template syntax within server-side templates. Successful exploitation of this vulnerability could allow a malicious actor with admin privilege to inject and execute arbitrary template code on the server, potentially leading to remote code execution, data manipulation, or unauthorized access to sensitive information.
How severe is CVE-2025-12107?: CVE-2025-12107 has a CVSS 3.x base score of 8.4, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-12107 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-12107?: CVE-2025-12107 affects Wso2 Identity Server. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-12107?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-12107 have an EU (EUVD) identifier?: Yes. CVE-2025-12107 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-207675.
When was CVE-2025-12107 published?: CVE-2025-12107 was published on 2026-02-19 and last updated on 2026-06-17.

References

https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2026/WSO2-2025-4517/

Affected products (1)

cpe:2.3:a:wso2:identity_server:5.11.0:*:*:*:*:*:*:*

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