What’s Vulnerable › Vulnerabilities

CVE-2021-23390: Arbitrary Code Execution

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.0% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-07-12 · updated 2026-06-17
• Weakness: CWE-94

Description

The package total4 before 0.0.43 are vulnerable to Arbitrary Code Execution via the U.set() and U.get() functions.

Affected products

• total4: before 0.0.43 — fixed in 0.0.43

How to fix

Upgrade to a fixed version: total4 0.0.43. Check the vendor advisory for mitigations.

References

• https://github.com/totaljs/framework4/blob/master/utils.js%23L5430-L5455
• https://github.com/totaljs/framework4/commit/8a72d8c20f38bbcac031a76a51238aa528f68821
• https://snyk.io/vuln/SNYK-JS-TOTAL4-1130527
• https://github.com/totaljs/framework4/blob/master/utils.js%23L5430-L5455
• https://github.com/totaljs/framework4/commit/8a72d8c20f38bbcac031a76a51238aa528f68821
• https://snyk.io/vuln/SNYK-JS-TOTAL4-1130527

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