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.
{
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/30xxx/CVE-2025-30343.json",
"cwe_ids": [
"CWE-24"
],
"cna_assigner": "mitre",
"unresolved_ranges": [
{
"extracted_events": [
{
"fixed": "4.2.5"
}
],
"source": "AFFECTED_FIELD"
},
{
"extracted_events": [
{
"fixed": "4.2.5"
}
],
"source": "DESCRIPTION"
}
]
}{
"extracted_events": [
{
"introduced": "0"
},
{
"fixed": "4.2.5"
}
],
"source": "CPE_RANGE",
"cpe": "cpe:2.3:a:openslides:openslides:*:*:*:*:*:*:*:*"
}