# CVE-2023-34237: sabnzbdplus: SABnzbd is an open source automated Usenet download tool

CVE-2023-34237 is fixed in sabnzbdplus on 1 platform, first by DEBIAN-CVE-2023-34237, released June 7, 2023. It is not reported as exploited. Patch Radar priority: Urgent.

- Web page: https://patchblox.com/security/cve/CVE-2023-34237
- Priority: Urgent
- CVSS: 9.8 (critical)
- EPSS: 0.0173
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jun 7, 2023

## Description

SABnzbd is an open source automated Usenet download tool. A design flaw was discovered in SABnzbd that could allow remote code execution. Manipulating the Parameters setting in the Notification Script functionality allows code execution with the privileges of the SABnzbd process. Exploiting the vulnerabilities requires access to the web interface. Remote exploitation is possible if users[exposed their setup to the internet or other untrusted networks without setting a username/password. By default SABnzbd is only accessible from `localhost`, with no authentication required for the web interface. This issue has been patched in commits `e3a722` and `422b4f` which have been included in the 4.0.2 release. Users are advised to upgrade. Users unable to upgrade should ensure that a username and password have been set if their instance is web accessible.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | sabnzbdplus Debian 13.5 (trixie) | 4.0.2+dfsg-1 | [DEBIAN-CVE-2023-34237](https://patchblox.com/security/data/fix/linux/debian-cve-2023-34237.md) | Jun 7, 2023 |
| Linux | sabnzbdplus Debian 14 | 4.0.2+dfsg-1 | [DEBIAN-CVE-2023-34237](https://patchblox.com/security/data/fix/linux/debian-cve-2023-34237.md) | Jun 7, 2023 |

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Data as of 2026-11-08T13:06:02Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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