CVE-2020-36533
CRITICALCVSS 9.8/10EPSS 1.41%
Last modified
CVE-2020-36533 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. A vulnerability was found in Klapp App and classified as problematic. This issue affects some unknown processing of the JSON Web Token Handler. EPSS estimates a 1.41% chance of exploitation in the next 30 days.
Description
A vulnerability was found in Klapp App and classified as problematic. This issue affects some unknown processing of the JSON Web Token Handler. The manipulation leads to weak authentication. The attack may be initiated remotely.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Klapp | App | All versions |
References
- https://vuldb.com/?id.160763Third Party Advisory, VDB Entry
- https://www.modzero.com/modlog/archives/2020/09/07/knapp_daneben_ist_auch_vorbei/index.htmlExploit, Third Party Advisory
- https://vuldb.com/?id.160763Third Party Advisory, VDB Entry
- https://www.modzero.com/modlog/archives/2020/09/07/knapp_daneben_ist_auch_vorbei/index.htmlExploit, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2020-36533?
A vulnerability was found in Klapp App and classified as problematic. This issue affects some unknown processing of the JSON Web Token Handler. The manipulation leads to weak authentication. The attack may be initiated remotely.
How severe is CVE-2020-36533?
CVE-2020-36533 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.41% probability of exploitation in the next 30 days.
How do I fix CVE-2020-36533?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2020-36533?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST