CVE-2026-1897
📋 TL;DR
This CVE describes a missing authorization vulnerability in WeKan's position history tracking component. Attackers can exploit this remotely to access unauthorized functionality. All WeKan instances up to version 8.20 are affected.
💻 Affected Systems
- WeKan
⚠️ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Unauthorized users could access sensitive position history data, potentially exposing user activity patterns and board metadata.
Likely Case
Attackers could view position history information they shouldn't have access to, violating data confidentiality.
If Mitigated
With proper network segmentation and access controls, impact would be limited to authorized users only.
🎯 Exploit Status
Missing authorization vulnerabilities typically require minimal technical skill to exploit.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 8.21
Vendor Advisory: https://github.com/wekan/wekan/releases/tag/v8.21
Restart Required: Yes
Instructions:
1. Backup your WeKan instance. 2. Upgrade to WeKan version 8.21 or later. 3. Restart the WeKan service. 4. Verify the patch is applied by checking the version.
🔧 Temporary Workarounds
Network Access Restriction
linuxRestrict network access to WeKan instances to trusted IP addresses only
# Use firewall rules to restrict access
# Example: iptables -A INPUT -p tcp --dport 3000 -s trusted_ip -j ACCEPT
# iptables -A INPUT -p tcp --dport 3000 -j DROP
🧯 If You Can't Patch
- Implement strict network segmentation to isolate WeKan instances
- Add additional authentication/authorization layers via reverse proxy
🔍 How to Verify
Check if Vulnerable:
Check WeKan version: if version is 8.20 or earlier, the system is vulnerable.Check Version:
Check WeKan admin panel or run: docker inspect wekan/wekan | grep -i versionVerify Fix Applied:
Verify version is 8.21 or later and check that commit 55576ec17722db094835470b386162c9a662fb60 is present.📡 Detection & Monitoring
Log Indicators:
- Unauthorized access attempts to position history endpoints
- Unusual access patterns to /api/position-history routes
Network Indicators:
- Requests to position history endpoints from unauthorized sources
SIEM Query:
source="wekan" AND (uri_path="/api/position-history" OR uri_path="/server/methods/positionHistory.js") AND user_role!="admin"