What is CVE-2026-43978?

CVE-2026-43978 is a high-severity vulnerability in Wger-project Wger, classified under Improper Privilege Management. CVSS score: 8.1/10. Published 2026-07-16.

How severe is CVE-2026-43978?

High severity. CVSS v3 base score is 8.1 out of 10.

Privilege escalation in Wger-project Wger

CVE-2026-43978

wger is a free, open-source workout and fitness manager. In versions prior to 2.6, a gym trainer can escalate their session to any higher-privileged account (gym manager, general manager) by chaining two calls to the trainer-login endpoint…

Vulnerability class: Privilege Escalation

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N.

Affected products

Wger-project Wger — versions < 2.6

Weakness classification (CWE)

CWE-269 — Improper Privilege Management

References

security-advisories@github.com (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-43978?: CVE-2026-43978 is a high-severity vulnerability in Wger-project Wger, classified under Improper Privilege Management. CVSS score: 8.1/10. Published 2026-07-16.
How severe is CVE-2026-43978?: High severity. CVSS v3 base score is 8.1 out of 10.