What is CVE-2022-34530?

CVE-2022-34530 is a medium-severity vulnerability in Backdropcms Backdrop Cms, classified under Weak Password Recovery Mechanism for Forgotten Password. CVSS score: 5.3/10. Published 2022-08-01.

How severe is CVE-2022-34530?

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

Vulnerability in Backdropcms Backdrop Cms

CVE-2022-34530

An issue in the login and reset password functionality of Backdrop CMS v1.22.0 allows attackers to enumerate usernames via password reset requests and distinct responses returned based on usernames.

Published 2022-08-01 · last modified 2026-07-09.

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: 0.006 (50.3th percentile), scored 2026-10-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 50th percentile — 50.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: +0.000

Affected products

Backdropcms Backdrop Cms

Weakness classification (CWE)

CWE-640 — Weak Password Recovery Mechanism for Forgotten Password

References

github.com/Accenture/AARO-Bugs/blob/master/AARO-CVE-List.md (Third Party Advisory)
af854a3a-2127-422b-91ae-364da2661108 (Not Applicable)

Frequently asked questions

What is CVE-2022-34530?: CVE-2022-34530 is a medium-severity vulnerability in Backdropcms Backdrop Cms, classified under Weak Password Recovery Mechanism for Forgotten Password. CVSS score: 5.3/10. Published 2022-08-01.
How severe is CVE-2022-34530?: Medium severity. CVSS v3 base score is 5.3 out of 10.