What is CVE-2020-11944?

CVE-2020-11944 is a medium-severity vulnerability in Bitcoin-Abe Project, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2020-04-20.

How severe is CVE-2020-11944?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Bitcoin-Abe Project

CVE-2020-11944

Abe (aka bitcoin-abe) through 0.7.2, and 0.8pre, allows XSS in __call__ in abe.py because the PATH_INFO environment variable is mishandled during a PageNotFound exception.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2020-04-20 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.012 (68.2th percentile), scored 2026-10-03.

Low probability of exploitation in the next 30 days, but still tracked. 68th percentile — 68.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: +0.000

Affected products

Bitcoin-Abe Project — versions 0.8

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

github.com/bitcoin-abe/bitcoin-abe/blob/d33f6e85de74e708e11cabe4ed0246e12025c72… (Patch, Third Party Advisory)
geeknik-labs.com (Third Party Advisory)
github.com/bitcoin-abe/bitcoin-abe/issues/292 (Broken Link)

Frequently asked questions

What is CVE-2020-11944?: CVE-2020-11944 is a medium-severity vulnerability in Bitcoin-Abe Project, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2020-04-20.
How severe is CVE-2020-11944?: Medium severity. CVSS v3 base score is 6.1 out of 10.