CVE-2026-108546
Spotweb through 1.5.8 OS Command Injection via Spot Title in Runcommand Integration
Description
Spotweb through 1.5.8 contains an OS command injection vulnerability in the runcommand NZB handler that allows remote attackers to execute commands by publishing spots with malicious titles. Attackers can post self-signed spots over Usenet with shell metacharacters in the title, which are substituted unescaped for $SPOTTITLE and passed to exec() when a user downloads the spot, running commands as the Spotweb PHP process.
INFO
Published Date :
Oct. 10, 2026, 2:15 p.m.
Last Modified :
Oct. 10, 2026, 2:15 p.m.
Remotely Exploit :
Yes !
Source :
VulnCheck
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 3.1 | HIGH | MITRE-CVE | ||||
| CVSS 4.0 | HIGH | 83251b91-4cc7-4094-a5c7-464a1b83ea10 |
Solution
- Update Spotweb to the latest version.
- Review and sanitize user-supplied data.
- Avoid using user input in system commands.
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CVE-2026-108546 vulnerability anywhere in the article.