TI-2025-21649 Aliases CVE-2025-30343 GHSA-mwpv-367w-4cpc

Path traversal in Intevation OpenSlides

MEDIUM 62CWE-24Published 2025-03-21 · Updated 2025-03-21

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: Information disclosure
Confidentiality · integrity · availability: High · None · None
Fix status: Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-22 and the CVSS impact.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00483 41st percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix Fixed OpenSlides (Intevation): 4.2.5

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Intevation	OpenSlides	before 4.2.5	4.2.5	Patch available	CNA

OpenSlides VendorIntevation Affected before 4.2.5 Fixed in 4.2.5 Patch available CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:openslides:openslides::::::::	before 4.2.5	Vulnerable	Intevation

cpe:2.3:a:openslides:openslides:*:*:*:*:*:*:*:* Versions before 4.2.5 Vulnerable ·Intevation

Remediation

Fix · CNA OpenSlides (Intevation) Fixed in 4.2.5

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

Release · 2025-03-21
Intevation OpenSlides 4.2.5
4 records Highest priority Priority MEDIUM 4 MEDIUM
Other records, highest priority first
- TI-2025-21650 Observable discrepancy in Intevation OpenSlidesPriority MEDIUM 63
- TI-2025-21648 Cross-site scripting in Intevation OpenSlidesPriority MEDIUM 60
- TI-2025-21651 Improper output encoding in Intevation OpenSlidesPriority MEDIUM 52
Show all 4 records →

Timeline

2026-10-02 Threatist record created from CVE-2025-30343
2026-10-03 Alias added: GHSA-mwpv-367w-4cpc

References

Exploit 1

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

TI-2025-21650 Observable discrepancy in Intevation OpenSlides CVSS 3.1MEDIUM 5.3
TI-2025-21648 Cross-site scripting in Intevation OpenSlides CVSS 3.1MEDIUM 6.1
TI-2025-21651 Improper output encoding in Intevation OpenSlides CVSS 3.1MEDIUM 4.1
TI-2026-20628 OpenSlides has incorrect access control vulnerability in authentication service CVSS 3.1CRITICAL 9.8
TI-2020-16101 XSS in OpenSlides CVSS 3.1HIGH 8.9
TI-2024-15167 OpenSlides 4.0.15 verifies passwords by comparing password hashes using a function with… CVSS 3.1HIGH 7.5

See all 7 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences