What’s Vulnerable › Vulnerabilities

CVE-2020-28468: Improper Control of Generation of Code ('Code Injection')

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 4.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-01-08 · updated 2026-06-17
• Weakness: CWE-74

Description

This affects the package pwntools before 4.3.1. The shellcraft generator for affected versions of this module are vulnerable to Server-Side Template Injection (SSTI), which can lead to remote code execution.

Affected products

• pwntools: before 4.3.1 — fixed in 4.3.1

How to fix

Upgrade to a fixed version: pwntools 4.3.1. Check the vendor advisory for mitigations.

References

• https://github.com/Gallopsled/pwntools/issues/1427
• https://github.com/Gallopsled/pwntools/pull/1732
• https://snyk.io/vuln/SNYK-PYTHON-PWNTOOLS-1047345
• https://github.com/Gallopsled/pwntools/issues/1427
• https://github.com/Gallopsled/pwntools/pull/1732
• https://snyk.io/vuln/SNYK-PYTHON-PWNTOOLS-1047345

Get alerted when CVE-2020-28468 or the next vulnerability affects your stack