A Server-Side Template Injection issue was discovered in Crafter CMS 3.0.18.

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

• craftercms crafter cmsup to 3.0.18 inclusive

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

Other highest-scoring records for the same primary product.

• CVE-2017-15681In Crafter CMS Crafter Studio 3.0.1 a directory traversal vulnerability exists which allows unauthenticated attackers to overwrite files fro
  40Plan
• CVE-2021-23264Transmission of Private Resources into a New Sphere ('Resource Leak') and Exposure of Resource to Wrong Sphere in Crafter Search
  36Monitor
• CVE-2021-23267Improper Control of Dynamically-Managed Code Resources in Crafter Studio
  35Monitor
• CVE-2017-15685Crafter CMS Crafter Studio 3.0.1 is affected by: XML External Entity (XXE).
  35Monitor
• CVE-2017-15683In Crafter CMS Crafter Studio 3.0.1 an unauthenticated attacker is able to create a site with specially crafted XML that allows the retrieva
  34Monitor
• CVE-2021-23263Transmission of Private Resources into a New Sphere ('Resource Leak') in Crafter Engine
  31Monitor

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Root cause

User input is inserted as text into a shell command. The shell may interpret special characters in the input as part of the command.

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

1const host = req.body.host;2exec("ping -c 1 " + host, onResult);

1const host = req.body.host;2if (!/^[a-z0-9.-]{1,253}$/i.test(host)) return res.sendStatus(400);3execFile("ping", ["-c", "1", host], onResult);

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.