CVE-2025-30343

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.

CVSS v3.1 Score

3.0

LOW

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

Weakness Type (CWE)

CWE-24 CWE-24

CWE-22 Path Traversal

Affected Products

Vendor	Product	Versions
openslides	openslides	< 4.2.5

References

Exploits

https://www.x41-dsec.de/lab/advisories/x41-2025-001-OpenSlides

Frequently Asked Questions

What is CVE-2025-30343? +

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. It has a CVSS v3.1 base score of 3.0 (LOW).

How severe is CVE-2025-30343? +

CVE-2025-30343 has a CVSS v3.1 score of 3.0 out of 10, rated LOW. This is a low-severity vulnerability with limited impact.

What products are affected by CVE-2025-30343? +

CVE-2025-30343 affects products from openslides, specifically: openslides. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-30343? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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