CVE-2026-40474 | wger-project wger up to 2.4 Configuration config.change_gymconfig save access control

VDB-358137 · CVE-2026-40474 · GCVE-0-2026-40474 WGER-PROJECT WGER UP TO 2.4 CONFIGURATION CONFIG.CHANGE_GYMCONFIG SAVE ACCESS CONTROL HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 6.8 $0-$5k 3.13+ Summaryinfo A vulnerability has been found in wger-project wger up to 2.4 and classified as critical. Affected is the function Save of the file config.change_gymconfig of the component Configuration Handler. Performing a manipulation results in access control. This vulnerability is reported as CVE-2026-40474. The attack is possible to be carried out remotely. No exploit exists. The affected component should be upgraded. Detailsinfo A vulnerability classified as critical has been found in wger-project wger up to 2.4. This affects the function save of the file config.change_gymconfig of the component Configuration Handler. The manipulation with an unknown input leads to a access control vulnerability. CWE is classifying the issue as CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is: wger is a free, open-source workout and fitness manager. In versions 2.5 and below, the GymConfigUpdateView declares permission_required = 'config.change_gymconfig' but inherits WgerFormMixin instead of WgerPermissionMixin, so the permission is never enforced at runtime. Since GymConfig is an ownerless singleton, any authenticated user can modify the global gym configuration, triggering save() side effects that bulk-update user profile gym assignments — a vertical privilege escalation to installation-wide configuration control. This issue is fixed in version 2.5. The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2026-40474 since 04/13/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1068 for this issue. Upgrading to version 2.5 eliminates this vulnerability. Productinfo Type Project Management Software Vendor wger-project Name wger Version 2.0 2.1 2.2 2.3 2.4 Website Product: https://github.com/wger-project/wger/ CPE 2.3info 🔒 🔒 🔒 CPE 2.2info 🔒 🔒 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 6.9 VulDB Meta Temp Score: 6.8 VulDB Base Score: 6.3 VulDB Temp Score: 6.0 VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA Base Score: 7.6 CNA Vector (GitHub_M): 🔒 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Access control CWE: CWE-284 / CWE-266 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Status: Not defined Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: Upgrade Status: 🔍 0-Day Time: 🔒 Upgrade: wger 2.5 Timelineinfo 04/13/2026 CVE reserved 04/17/2026 +4 days Advisory disclosed 04/17/2026 +0 days VulDB entry created 04/17/2026 +0 days VulDB entry last update Sourcesinfo Product: github.com Advisory: github.com Status: Confirmed CVE: CVE-2026-40474 (🔒) GCVE (CVE): GCVE-0-2026-40474 GCVE (VulDB): GCVE-100-358137 Entryinfo Created: 04/17/2026 23:54 Changes: 04/17/2026 23:54 (67) Complete: 🔍 Cache ID: 99:0C3:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸