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Vulnerability · Published Oct 10, 2023 · Assigned by VulnCheck

CVE-2023-30801qBittorrent Web UI Default Credentials Lead to RCE

Critical 9.8

In plain English

A critical-severity security flaw in qBittorrent client from qBittorrent. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.2% (higher than 69% of all known vulnerabilities).

Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)1.2%top 30.7% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

All versions of the qBittorrent client through 4.5.5 use default credentials when the web user interface is enabled. The administrator is not forced to change the default credentials. As of 4.5.5, this issue has not been fixed. A remote attacker can use the default credentials to authenticate and execute arbitrary operating system commands using the "external program" feature in the web user interface. This was reportedly exploited in the wild in March 2023.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12qbittorrentno fix listedDEBIAN-CVE-2023-30801
Debian:13qbittorrentno fix listedDEBIAN-CVE-2023-30801
Debian:14qbittorrentno fix listedDEBIAN-CVE-2023-30801
Ubuntu:22.04:LTSqbittorrentno fix listedUBUNTU-CVE-2023-30801
Ubuntu:24.04:LTSqbittorrentno fix listedUBUNTU-CVE-2023-30801
Ubuntu:25.10qbittorrentno fix listedUBUNTU-CVE-2023-30801
Ubuntu:26.04:LTSqbittorrentno fix listedUBUNTU-CVE-2023-30801
Ubuntu:26.10qbittorrentno fix listedUBUNTU-CVE-2023-30801

Affected products (as reported)

VendorProductVersions
qBittorrent qBittorrent client 0 – through 4.5.5

Weakness: CWE-1392 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References