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CVE-2025-59788

MEDIUMCVSS 5.4/10EPSS 0.25%

Last modified

CVE-2025-59788 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. Cross-site scripting (XSS) vulnerability in a reachable files_pdfviewer example directory in Nextcloud with versions before 22.2.10.33, 23.0.12.29, 24.0.12.28, 25.0.13.23, 26.0.13.20, 27.1.11.20, 28.0.14.11, 29.0.16.8, 30.0.17, 31.0.10, and 32.0.1 allows attackers to execute arbitrary JavaScript in the context of a user's browser via a crafted PDF file to viewer.html. This issue is related to CVE-2024-4367, but the root cause of this Nextcloud issue is that the product exposes executable example code on a same-origin basis.. EPSS estimates a 0.25% chance of exploitation in the next 30 days.

Description

Cross-site scripting (XSS) vulnerability in a reachable files_pdfviewer example directory in Nextcloud with versions before 22.2.10.33, 23.0.12.29, 24.0.12.28, 25.0.13.23, 26.0.13.20, 27.1.11.20, 28.0.14.11, 29.0.16.8, 30.0.17, 31.0.10, and 32.0.1 allows attackers to execute arbitrary JavaScript in the context of a user's browser via a crafted PDF file to viewer.html. This issue is related to CVE-2024-4367, but the root cause of this Nextcloud issue is that the product exposes executable example code on a same-origin basis.

Metrics

CVSS 3.1
5.4/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

EPSS Probability
0.25%

15.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
NextcloudNextcloud Server>= 30.0.0, < 30.0.17
NextcloudNextcloud Server>= 31.0.0, < 31.0.10
NextcloudNextcloud Server>= 32.0.0, < 32.0.1
NextcloudNextcloud Server>= 22.0.0, < 22.2.10.33
NextcloudNextcloud Server>= 23.0.0, < 23.0.12.29
NextcloudNextcloud Server>= 24.0.0, < 24.0.12.28
NextcloudNextcloud Server>= 25.0.0, < 25.0.13.23
NextcloudNextcloud Server>= 26.0.0, < 26.0.13.20
NextcloudNextcloud Server>= 27.0.0, < 27.1.11.20
NextcloudNextcloud Server>= 28.0.0, < 28.0.14.11
NextcloudNextcloud Server>= 29.0.0, < 29.0.16.8

References

Timeline

Published
Last Modified
Status
Analyzed

Frequently Asked Questions

What is CVE-2025-59788?
Cross-site scripting (XSS) vulnerability in a reachable files_pdfviewer example directory in Nextcloud with versions before 22.2.10.33, 23.0.12.29, 24.0.12.28, 25.0.13.23, 26.0.13.20, 27.1.11.20, 28.0.14.11, 29.0.16.8, 30.0.17, 31.0.10, and 32.0.1 allows attackers to execute arbitrary JavaScript in the context of a user's browser via a crafted PDF file to viewer.html. This issue is related to CVE-2024-4367, but the root cause of this Nextcloud issue is that the product exposes executable example code on a same-origin basis.
How severe is CVE-2025-59788?
CVE-2025-59788 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 0.25% probability of exploitation in the next 30 days.
How do I fix CVE-2025-59788?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-59788?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST