CVE-2026-108546
Spotweb through 1.5.8 contains an OS command injection vulnerability in the runcommand NZB handler…
- Risk score
- 61/100
- CVSS
- 7.5 v3.1
- Exploit chance (30 days)
- 0.8%
- Published
- 10 Oct 2026
Open in the live forecast Today's forecast
What to know
- What it is
- 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 $SP…
- Affected
- See advisory
- Fix
- Apply the vendor's security update; see the linked advisory.
- Exploitation
- No known exploitation
Why it is Amber
- CVSS 7.5 high
- Remotely exploitable without logging in
References
- https://github.com/spotweb/spotweb
- https://github.com/spotweb/spotweb/blob/1.5.8/lib/services/NzbHandler/Services_NzbHandler_Runcommand.php#L41-L45
- https://hackmd.io/@haind/spotweb-runcommand-title-injection
- https://www.vulncheck.com/advisories/spotweb-through-1.5.8-os-command-injection-via-spot-title-in-runcommand-integration
Original 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.
Last activity 10 Oct 2026. Patch Forecast updates every hour.