What is CVE-2020-12478?

CVE-2020-12478 is a high-severity vulnerability in Teampass, classified under Missing Authentication for Critical Function. CVSS score: 7.5/10. Published 2020-04-29.

How severe is CVE-2020-12478?

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

Is CVE-2020-12478 known to be exploited?

7 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Auth bypass in Teampass

CVE-2020-12478

TeamPass 2.1.27.36 allows an unauthenticated attacker to retrieve files from the TeamPass web root. This may include backups or LDAP debug files.

Vulnerability class: Broken Authentication

Published 2020-04-29 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.086 (94.9th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 95th percentile — 94.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.084 · newest: 0.086 · change: +0.002

Affected products

Teampass — versions 2.1.27.36

Weakness classification (CWE)

CWE-306 — Missing Authentication for Critical Function

Public proof-of-concept exploits

References

github.com/nilsteampassnet/TeamPass/issues/2764 (Exploit, Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2020-12478?: CVE-2020-12478 is a high-severity vulnerability in Teampass, classified under Missing Authentication for Critical Function. CVSS score: 7.5/10. Published 2020-04-29.
How severe is CVE-2020-12478?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2020-12478 known to be exploited?: 7 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.