What is CVE-2016-1000032?

CVE-2016-1000032 is a high-severity vulnerability in Python Tgcaptcha2, classified under Improper Access Control. CVSS score: 7.5/10. Published 2016-10-25.

How severe is CVE-2016-1000032?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Python Tgcaptcha2

CVE-2016-1000032

TGCaptcha2 version 0.3.0 is vulnerable to a replay attack due to a missing nonce allowing attackers to use a single solved CAPTCHA multiple times.

Published 2016-10-25 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.

EPSS exploit prediction

EPSS: 0.013 (70.0th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 70th percentile — 70.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000

Affected products

Python Tgcaptcha2 — versions 0.3.0

Weakness classification (CWE)

CWE-284 — Improper Access Control

References

bugzilla.redhat.com/show_bug.cgi (VDB Entry, Third Party Advisory, Issue Tracking)
patrick.uiterwijk.org/2016/03/09/fedora-spam-dwf-2016-89000/ (Technical Description, Third Party Advisory)

Frequently asked questions

What is CVE-2016-1000032?: CVE-2016-1000032 is a high-severity vulnerability in Python Tgcaptcha2, classified under Improper Access Control. CVSS score: 7.5/10. Published 2016-10-25.
How severe is CVE-2016-1000032?: High severity. CVSS v3 base score is 7.5 out of 10.