Secuno
ENNL
Book demo

CVE-2025-66645

Zauberzeug Nicegui path traversal

7.5 HIGHPublic exploitEPSS 1.12%
  1. Published9 Dec 2025

Description

NiceGUI is a Python-based UI framework. Versions 3.3.1 and below are vulnerable to directory traversal through the App.add_media_files() function, which allows a remote attacker to read arbitrary files on the server filesystem. This issue is fixed in version 3.4.0.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected products

Zauberzeug Nicegui< 3.4.0

Remediation

Fixed in
Zauberzeug Nicegui≥ 3.4.0

References

Related CVEs

Recent high-severity vulnerabilities sharing a weakness type.

CVE-2026-599768.1
ConvertX is a self-hosted file conversion service. Prior to 0.18.0, the ImageMagick…
CVE-2026-859538.5
Progress MarkLogic Server 12.x releases before 12.1.0 and 11.x releases before 11.3.7…
CVE-2026-783558.7
A path traversal vulnerability in the OTRS SendSupportBundle functionality allows an…
CVE-2026-876908.8
The Metasploit Framework post module post/apple_ios/gather/ios_image_gather is affected…
CVE-2026-1089028.1
pH7Builder (pH7 Social Dating CMS) before 18.5.0 contains a path traversal…
CVE-2026-1058929.8
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')…

Frequently asked

Is CVE-2025-66645 being actively exploited?

CVE-2025-66645 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 1.12%.

How severe is CVE-2025-66645?

CVE-2025-66645 has a CVSS 3.1 base score of 7.5, rated high. EPSS estimates a 1.12% probability of exploitation.

Which products are affected by CVE-2025-66645?

Affected products include Zauberzeug Nicegui.

How do I fix CVE-2025-66645?

Upgrade affected software to a fixed version, for example Zauberzeug Nicegui 3.4.0 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2025-66645 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

See how prioritisation worksBook a demo

Get Patch this first every Monday

Five vulnerabilities that matter this week, ranked on real exploitation. Plain language, one email, no spam.

You can unsubscribe with one click from every issue. We handle your details as described in our privacy policy.

Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.