TI-2026-32005 Aliases CVE-2026-43948 GHSA-mhc8-p3jx-84mm

wger: cross-tenant password reset and plaintext disclosure via gym=None bypass

HIGH 76CWE-863Published 2026-05-12 · Updated 2026-05-13

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: Security bypass
Confidentiality · integrity · availability: High · High · High
Fix status: Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-863.

Summary

wger is a free, open-source workout and fitness manager. Prior to 2.6, the reset_user_password and gym_permissions_user_edit views in wger perform a gym-scope authorization check using Python object comparison (!=) that evaluates None != None as False, silently bypassing the guard when both the attacker and victim have no gym assignment (gym=None). A user with gym.manage_gym permission and gym=None can reset the password of any other gym=None user; the new plaintext password is returned verbatim in the HTML response body, enabling one-shot full account takeover. The victim's original password is invalidated, locking them out permanently. This vulnerability is fixed in 2.6.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00371 31st percentileScored 2026-11-07

Fix Fixed wger (wger-project): 2.6wger (PyPI): 2.6

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
wger-project	wger	before 2.6	2.6	Patch available	CNA
—	wger (PyPI)	before 2.6	2.6	Patch available	GHSA-mhc8-p3jx-84mm

wger Vendorwger-project Affected before 2.6 Fixed in 2.6 Patch available CNA
wger (PyPI) Vendor— Affected before 2.6 Fixed in 2.6 Patch available GHSA-mhc8-p3jx-84mm

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPE	Versions	Role	Vendor
cpe:2.3:a:wger:wger::::::::	—	—	wger-project

cpe:2.3:a:wger:wger:*:*:*:*:*:*:*:* Versions — — ·wger-project

Remediation

Fix · CNA wger (wger-project) Fixed in 2.6
Fix · GHSA-mhc8-p3jx-84mm wger (PyPI) Fixed in 2.6 Advisory →

Timeline

2026-10-02 Threatist record created from CVE-2026-43948
2026-10-03 Alias added: GHSA-mhc8-p3jx-84mm

References

Advisory 1

https://nvd.nist.gov/vuln/detail/CVE-2026-43948

Other 2

TI-2022-02450 Improper Restriction of Excessive Authentication Attempts in wger-project/wger CVSS 3.1CRITICAL 9.8
TI-2023-20093 Cross Site Request Forgery (CSRF) vulnerability in wger Project wger Workout Manager… CVSS 3.1HIGH 8.8
TI-2026-32021 wger IDOR: Authenticated Users Can Read Others' Private Workout Session Data via Template Routine API CVSS 3.1HIGH 7.5
TI-2026-32022 wger: Privilege escalation via trainer-login session chaining allows gym trainers to impersonate gym managers CVSS 3.1HIGH 8.1
TI-2026-29226 wger has Broken Access Control in the Global Gym Configuration Update Endpoint CVSS 3.1HIGH 7.6
TI-2026-69145 wger: Trainer Privilege Escalation through Improper Privilege Management CVSS 3.1HIGH 7.1

See all 20 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences