How severe is CVE-2025-52902?

CVE-2025-52902 has a CVSS 3.x base score of 7.6, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity low, and availability none.

Is CVE-2025-52902 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (18th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-52902?

CVE-2025-52902 affects Filebrowser. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-52902?

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-2025-52902 have an EU (EUVD) identifier?

Yes. CVE-2025-52902 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-19201.

When was CVE-2025-52902 published?

CVE-2025-52902 was published on 2025-06-26 and last updated on 2026-06-17.

CVE-2025-52902

CVE-2025-52902 is a high-severity vulnerability in Filebrowser with a CVSS 3.x base score of 7.6. 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: High (CVSS 3.x base score 7.6)
EPSS exploit prediction: 0% (18th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-19201
Weakness: CWE-79
Affected product: Filebrowser
Published: 2025-06-26
Last modified: 2026-06-17

Description

File Browser provides a file managing interface within a specified directory and it can be used to upload, delete, preview, rename and edit files. The Markdown preview function of File Browser prior to v2.33.7 is vulnerable to Stored Cross-Site-Scripting (XSS). Any JavaScript code that is part of a Markdown file uploaded by a user will be executed by the browser. Version 2.33.7 contains a fix for the issue.

Frequently asked questions

What is CVE-2025-52902?: File Browser provides a file managing interface within a specified directory and it can be used to upload, delete, preview, rename and edit files. The Markdown preview function of File Browser prior to v2.33.7 is vulnerable to Stored Cross-Site-Scripting (XSS). Any JavaScript code that is part of a Markdown file uploaded by a user will be executed by the browser. Version 2.33.7 contains a fix for the issue.
How severe is CVE-2025-52902?: CVE-2025-52902 has a CVSS 3.x base score of 7.6, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity low, and availability none.
Is CVE-2025-52902 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (18th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-52902?: CVE-2025-52902 affects Filebrowser. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-52902?: 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-2025-52902 have an EU (EUVD) identifier?: Yes. CVE-2025-52902 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-19201.
When was CVE-2025-52902 published?: CVE-2025-52902 was published on 2025-06-26 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:filebrowser:filebrowser:*:*:*:*:*:*:*:*

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