How severe is CVE-2025-24887?

CVE-2025-24887 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2025-24887 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-24887?

CVE-2025-24887 affects Citeum Opencti. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-24887?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-24887 have an EU (EUVD) identifier?

Yes. CVE-2025-24887 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-14854.

When was CVE-2025-24887 published?

CVE-2025-24887 was published on 2025-04-30 and last updated on 2026-06-17.

CVE-2025-24887

CVE-2025-24887 is a medium-severity vulnerability in Citeum Opencti with a CVSS 3.x base score of 6.3. 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-284.

Key facts

Severity: Medium (CVSS 3.x base score 6.3)
EPSS exploit prediction: 0% (10th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-14854
Weakness: CWE-284
Affected product: Citeum Opencti
Published: 2025-04-30
Last modified: 2026-06-17

Description

OpenCTI is an open-source cyber threat intelligence platform. In versions starting from 6.4.8 to before 6.4.10, the allow/deny lists can be bypassed, allowing a user to change attributes that are intended to be unmodifiable by the user. It is possible to toggle the `external` flag on/off and change the own token value for a user. It is also possible to edit attributes that are not in the allow list, such as `otp_qr` and `otp_activated`. If external users exist in the OpenCTI setup and the information about these users identities is sensitive, the above vulnerabilities can be used to enumerate existing user accounts as a standard low privileged user. This issue has been patched in version 6.4.10.

Frequently asked questions

What is CVE-2025-24887?: OpenCTI is an open-source cyber threat intelligence platform. In versions starting from 6.4.8 to before 6.4.10, the allow/deny lists can be bypassed, allowing a user to change attributes that are intended to be unmodifiable by the user. It is possible to toggle the `external` flag on/off and change the own token value for a user. It is also possible to edit attributes that are not in the allow list, such as `otp_qr` and `otp_activated`. If external users exist in the OpenCTI setup and the information about these users identities is sensitive, the above vulnerabilities can be used to enumerate existing user accounts as a standard low privileged user. This issue has been patched in version 6.4.10.
How severe is CVE-2025-24887?: CVE-2025-24887 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2025-24887 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-24887?: CVE-2025-24887 affects Citeum Opencti. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-24887?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-24887 have an EU (EUVD) identifier?: Yes. CVE-2025-24887 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-14854.
When was CVE-2025-24887 published?: CVE-2025-24887 was published on 2025-04-30 and last updated on 2026-06-17.

References

https://github.com/OpenCTI-Platform/opencti/security/advisories/GHSA-8262-pw2q-5qc3

Affected products (1)

cpe:2.3:a:citeum:opencti:*:*:*:*:*:*:*:*

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