How severe is CVE-2025-59035?

CVE-2025-59035 has a CVSS 3.x base score of 4.6, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2025-59035 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (9th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-59035?

CVE-2025-59035 affects Cern Indico. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-59035?

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

Does CVE-2025-59035 have an EU (EUVD) identifier?

Yes. CVE-2025-59035 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-27577.

When was CVE-2025-59035 published?

CVE-2025-59035 was published on 2025-09-10 and last updated on 2026-06-17.

CVE-2025-59035

CVE-2025-59035 is a medium-severity vulnerability in Cern Indico with a CVSS 3.x base score of 4.6. 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-79.

Key facts

Severity: Medium (CVSS 3.x base score 4.6)
EPSS exploit prediction: 0% (9th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-27577
Weakness: CWE-79
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, there is a Cross-Site-Scripting vulnerability when rendering LaTeX math code in contribution or abstract descriptions. Users should to update to Indico 3.3.8 as soon as possible. As a workaround, only let trustworthy users create content on Indico. Note that a conference doing a Call for Abstracts actively invites external speakers (who the organizers may not know and thus cannot fully trust) to submit content, hence the need to update to a a fixed version ASAP in particular when using such workflows.

Frequently asked questions

What is CVE-2025-59035?: Indico is an event management system that uses Flask-Multipass, a multi-backend authentication system for Flask. Prior to version 3.3.8, there is a Cross-Site-Scripting vulnerability when rendering LaTeX math code in contribution or abstract descriptions. Users should to update to Indico 3.3.8 as soon as possible. As a workaround, only let trustworthy users create content on Indico. Note that a conference doing a Call for Abstracts actively invites external speakers (who the organizers may not know and thus cannot fully trust) to submit content, hence the need to update to a a fixed version ASAP in particular when using such workflows.
How severe is CVE-2025-59035?: CVE-2025-59035 has a CVSS 3.x base score of 4.6, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2025-59035 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (9th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-59035?: CVE-2025-59035 affects Cern Indico. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-59035?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-59035 have an EU (EUVD) identifier?: Yes. CVE-2025-59035 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-27577.
When was CVE-2025-59035 published?: CVE-2025-59035 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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