HOMEVULNERABILITIESCVE-2026-27839
MEDIUM

CVE-2026-27839

CWE-639Published: February 26, 2026· Updated: Mar 3, 2026

4.3
CVSS v3.1
EPSS:0.03%probability of exploitation in 30 daysPercentile:6.6th

Official Description

wger is a free, open-source workout and fitness manager. In versions up to and including 2.4, three `nutritional_values` action endpoints fetch objects via `Model.objects.get(pk=pk)` — a raw ORM call that bypasses the user-scoped queryset. Any authenticated user can read another user's private nutrition plan data, including caloric intake and full macro breakdown, by supplying an arbitrary PK. Commit 29876a1954fe959e4b58ef070170e81703dab60e contains a fix for the issue.

NVD Source

Technical Analysis

CVE-2026-27839 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityLow
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Affected Vendors & Products

wger1 product
wger
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
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GitHub PoC Search
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Rapid7 / Metasploit
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Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
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Official Patches & Advisories

PATCHhttps://github.com/wger-project/wger/commit/29876a1954fe959e4b58ef070170e81703dab60e
ADVISORYhttps://github.com/wger-project/wger/security/advisories/GHSA-g8gc-6c4h-jg86

All References (2)

→
https://github.com/wger-project/wger/commit/29876a1954fe959e4b58ef070170e81703dab60ePatch
→
https://github.com/wger-project/wger/security/advisories/GHSA-g8gc-6c4h-jg86Exploit · Vendor Advisory

Quick Facts

CVE IDCVE-2026-27839
CVSS Score4.3 / 10
SeverityMEDIUM
WeaknessCWE-639
CISA KEVNo
EPSS (30d)0.03%
Affected1 vendor
PublishedFeb 26, 2026

Related CVEs (CWE-639)

CVE-2026-29200
9.9
CVE-2026-45552
9.9
CVE-2026-52782
9.9
CVE-2026-55255
KEV9.9
CVE-2026-33511
9.8
CVE-2019-25487
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2026-27839 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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