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Vulnerability record · CVE-2023-30801 · published 10 October 2023

CVE-2023-30801: Qbittorrent hard-coded credentials vulnerability

Qbittorrent · Qbittorrent

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.

9.8 CVSS 3.1 Critical EPSS 0.91% · top 41.6% CWE-1392 · CWE-1392CWE-798 · Hard-coded credentials
9.8CVSS 3.1 base score
0.91%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
8References
17 Jun 2026Last modified by NVD

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.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/qbittorrent/qBittorrent/issues/18731 Issue Tracking
https://lists.fedoraproject.org/archives/list/[email protected]/message/T5WXBKELVZFZNIDONIJESOCSR
https://lists.fedoraproject.org/archives/list/[email protected]/message/U4BNFJR3ZWVLE2YSYIQYBWVDQ
https://vulncheck.com/advisories/qbittorrent-default-creds Third Party Advisory
https://github.com/qbittorrent/qBittorrent/issues/18731 Issue Tracking
https://lists.fedoraproject.org/archives/list/[email protected]/message/T5WXBKELVZFZNIDONIJESOCSR
https://lists.fedoraproject.org/archives/list/[email protected]/message/U4BNFJR3ZWVLE2YSYIQYBWVDQ
https://vulncheck.com/advisories/qbittorrent-default-creds Third Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2019-13640Qbittorrent os command injection vulnerabilityIn qBittorrent before 4.1.7, the function Application::runExternalProgram() located in app/application.cpp allows command injection via shell metacha…EPSS 7.9%8.1CVE-2024-51774Qbittorrent improper certificate validation vulnerabilityqBittorrent before 5.0.1 proceeds with use of https URLs even after certificate validation errors.EPSS 3.3%7.1CVE-2017-12778Qbittorrent improper authentication vulnerabilityThe UI Lock feature in qBittorrent version 3.3.15 is vulnerable to Authentication Bypass, which allows Attack to gain unauthorized access to qBittorr…EPSS 0.48%6.1CVE-2017-6503Qbittorrent cross-site scripting vulnerabilityWebUI in qBittorrent before 3.3.11 did not escape many values, which could potentially lead to XSS.EPSS 0.86%6.1CVE-2017-6504Qbittorrent improper input validation vulnerabilityWebUI in qBittorrent before 3.3.11 did not set the X-Frame-Options header, which could potentially lead to clickjacking.EPSS 0.67%5.3CVE-2025-54310Qbittorrent vulnerabilityqBittorrent before 5.1.2 does not prevent access to a local file that is referenced in a link URL. This affects rsswidget.cpp and searchjobwidget.cpp.EPSS 0.42%

Source: NIST National Vulnerability Database (record CVE-2023-30801), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.