What is CVE-2020-28468?

CVE-2020-28468 is a high-severity vulnerability in Pwntools Project, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 8.1/10. Published 2021-01-08.

How severe is CVE-2020-28468?

High severity. CVSS v3 base score is 8.1 out of 10.

Vulnerability in Pwntools Project

CVE-2020-28468

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.

Published 2021-01-08 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.042 (90.6th percentile), scored 2026-10-02.

Low probability of exploitation in the next 30 days, but still tracked. 91st percentile — 90.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.042 · newest: 0.042 · change: 0.000

Affected products

Pwntools Project
Pwntools — versions unspecified

Weakness classification (CWE)

CWE-74 — Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection)

References

snyk.io/vuln/SNYK-PYTHON-PWNTOOLS-1047345 (Exploit, Patch, Third Party Advisory)
github.com/Gallopsled/pwntools/issues/1427 (Exploit, Third Party Advisory, Issue Tracking)
github.com/Gallopsled/pwntools/pull/1732 (Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2020-28468?: CVE-2020-28468 is a high-severity vulnerability in Pwntools Project, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 8.1/10. Published 2021-01-08.
How severe is CVE-2020-28468?: High severity. CVSS v3 base score is 8.1 out of 10.