CVE-2026-108546Spotweb through 1.5.8 OS Command Injection via Spot Title in Runcommand Integration
Updated under an hour ago ()
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It affects spotweb. Add what you run to find out whether that includes you.
EPSS puts the chance of exploitation in the next 30 days at 0.80%, higher than 56% of scored CVEs.
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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.
- CVSS
- 7.5 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-78
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- 0.80% (percentile 56)
- Assigned by
- VulnCheck
- NVD analysis
- Deferred
- Record last updated
- Oct 13, 2026
- First seen by InfoSec Signals
- Oct 10, 2026
Affected products
spotweb spotweb spotweb:spotweb (from the name) | through 1.5.8 | CNA record |
References
- https://hackmd.io/@haind/spotweb-runcommand-title-injectiontechnical-description, exploit
- https://github.com/spotweb/spotwebproduct
- https://github.com/spotweb/spotweb/blob/1.5.8/lib/services/NzbHandler/Services_NzbHandler_Runcommand.php#L41-L45technical-description
- https://www.vulncheck.com/advisories/spotweb-through-1.5.8-os-command-injection-via-spot-title-in-runcommand-integrationthird-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.