What is CVE-2013-1422?

CVE-2013-1422 is a medium-severity vulnerability in Webcalendar Project, classified under Observable Discrepancy. CVSS score: 5.3/10. Published 2020-02-04.

How severe is CVE-2013-1422?

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

Vulnerability in Webcalendar Project

CVE-2013-1422

webcalendar before 1.2.7 shows the reason for a failed login (e.g., "no such user").

Published 2020-02-04 · last modified 2026-06-16.

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: 0.016 (75.1th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 75th percentile — 75.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.016 · newest: 0.016 · change: 0.000

Affected products

Webcalendar Project

Weakness classification (CWE)

CWE-203 — Observable Discrepancy

References

www.openwall.com/lists/oss-security/2013/07/22/8 (Mailing List, Third Party Advisory)
www.openwall.com/lists/oss-security/2013/07/25/4 (Mailing List, Third Party Advisory)
www.securityfocus.com/bid/58250/info (VDB Entry, Third Party Advisory)

Frequently asked questions

What is CVE-2013-1422?: CVE-2013-1422 is a medium-severity vulnerability in Webcalendar Project, classified under Observable Discrepancy. CVSS score: 5.3/10. Published 2020-02-04.
How severe is CVE-2013-1422?: Medium severity. CVSS v3 base score is 5.3 out of 10.