How severe is CVE-2025-59034?

CVE-2025-59034 has a CVSS 3.x base score of 4.3, 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 none, and availability none.

Is CVE-2025-59034 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-59034?

CVE-2025-59034 affects Cern Indico. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-59034?

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

Does CVE-2025-59034 have an EU (EUVD) identifier?

Yes. CVE-2025-59034 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-27579.

When was CVE-2025-59034 published?

CVE-2025-59034 was published on 2025-09-10 and last updated on 2026-06-17.

CVE-2025-59034

CVE-2025-59034 is a medium-severity vulnerability in Cern Indico with a CVSS 3.x base score of 4.3. 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-639.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
EPSS exploit prediction: 0% (14th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-27579
Weakness: CWE-639
Affected product: Cern Indico
Published: 2025-09-10
Last modified: 2026-06-17

Description

Indico is an event management system that uses Flask-Multipass, a multi-backend authentication system for Flask. Prior to version 3.3.8, a legacy API to retrieve user details could be misused to retrieve profile details of other users without having admin permissions due to a broken access check. Users should to update to Indico 3.3.8 as soon as possible. As a workaround, it is possible to restrict access to the affected API (e.g. in the webserver config).

Frequently asked questions

What is CVE-2025-59034?: Indico is an event management system that uses Flask-Multipass, a multi-backend authentication system for Flask. Prior to version 3.3.8, a legacy API to retrieve user details could be misused to retrieve profile details of other users without having admin permissions due to a broken access check. Users should to update to Indico 3.3.8 as soon as possible. As a workaround, it is possible to restrict access to the affected API (e.g. in the webserver config).
How severe is CVE-2025-59034?: CVE-2025-59034 has a CVSS 3.x base score of 4.3, 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 none, and availability none.
Is CVE-2025-59034 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-59034?: CVE-2025-59034 affects Cern Indico. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-59034?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-59034 have an EU (EUVD) identifier?: Yes. CVE-2025-59034 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-27579.
When was CVE-2025-59034 published?: CVE-2025-59034 was published on 2025-09-10 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:cern:indico:*:*:*:*:*:*:*:*

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