CVE-2025-30343 Path traversal in OpenSlides

Low 3.0 Published Updated

Attackers can craft file titles to cause path traversal in ZIP archives, potentially overwriting local files when extracted.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2025-30343?

CVE-2025-30343 is a low-severity path traversal vulnerability in Intevation OpenSlides, published on 21 Mar 2025. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

A directory traversal issue was discovered in OpenSlides before 4.2.5. Files can be uploaded to OpenSlides meetings and organized in folders. The interface allows users to download a ZIP archive that contains all files in a folder and its subfolders. If an attacker specifies the title of a file or folder as a relative or absolute path (e.g., ../../../etc/passwd), the ZIP archive generated for download converts that title into a path. Depending on the extraction tool used by the user, this might overwrite files locally outside of the chosen directory.

Weakness: CWE-22, CWE-24

Which versions are affected by CVE-2025-30343?

It affects 1 product.

Products include Openslides Openslides.

How do I fix CVE-2025-30343?

No fix has been published for CVE-2025-30343 yet. Limit exposure of the affected software until one is available.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2025-30343 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-30343 exists.

Sources

Also known as GHSA-mwpv-367w-4cpc.

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