What is CVE-2019-16669?

CVE-2019-16669 is a medium-severity vulnerability in Pagekit, classified under Observable Discrepancy. CVSS score: 5.3/10. Published 2019-09-21.

How severe is CVE-2019-16669?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Vulnerability in Pagekit

CVE-2019-16669

The Reset Password feature in Pagekit 1.0.17 gives a different response depending on whether the e-mail address of a valid user account is entered, which might make it easier for attackers to enumerate accounts.

Published 2019-09-21 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.011 (64.5th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 64th percentile — 64.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000

Affected products

Pagekit — versions 1.0.17

Weakness classification (CWE)

CWE-203 — Observable Discrepancy

References

github.com/pagekit/pagekit/issues/935 (Exploit, Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2019-16669?: CVE-2019-16669 is a medium-severity vulnerability in Pagekit, classified under Observable Discrepancy. CVSS score: 5.3/10. Published 2019-09-21.
How severe is CVE-2019-16669?: Medium severity. CVSS v3 base score is 5.3 out of 10.