PT-2026-22205 · Wger · Wger

Byamb4 · Published 2026-02-26 · Updated 2026-02-27 · CVE-2026-27839

Positive Technologies (AI Summary)

CVSS v3.1

4.3

Medium

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Name of the Vulnerable Software and Affected Versions wger versions prior to 2.4

Description wger is a free, open-source workout and fitness manager. An issue exists where three nutritional values action endpoints bypass user-scoped querysets via a raw ORM call, specifically Model.objects.get(pk=pk). This allows any authenticated user to access another user's private nutrition plan data, including caloric intake and macro breakdown, by providing an arbitrary primary key (pk). The issue was addressed in commit 29876a1954fe959e4b58ef070170e81703dab60e.

Recommendations Update to a version later than 2.4.

Exploit

Fix

IDOR

Weakness Enumeration

CWE-639

Related Identifiers

CVE-2026-27839

GHSA-G8GC-6C4H-JG86

Affected Products

Wger

References · 10

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/27xxx/CVE-2026-27839.json · Exploit
• https://github.com/wger-project/wger/commit/29876a1954fe959e4b58ef070170e81703dab60e · Patch
• https://github.com/wger-project/wger/security/advisories/GHSA-g8gc-6c4h-jg86 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2026-27839 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-27839 · Security Note
• https://osv.dev/vulnerability/GHSA-g8gc-6c4h-jg86 · Vendor Advisory
• https://github.com/wger-project/wger · Note
• https://twitter.com/_cvereports/status/2027257465113391261 · Twitter Post
• https://twitter.com/CVEnew/status/2027466644726157428 · Twitter Post
• https://twitter.com/VulmonFeeds/status/2027205933743407381 · Twitter Post