CVE-2020-36533: A vulnerability was found in Klapp App and classified as problematic

This week

LOW 3.7REMOTEMITIGATE

CVE-2020-36533 is a low-severity flaw (CVSS 3.7) affecting app. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

Public exploit reference
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	3.7 (Low)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	None
User interaction	None
EPSS exploit chance	1.5% (top 26%)
CISA exploited list	No
Weakness	CWE-287
Published	2022-06-07
Last modified	2026-06-17

Publisher (CNA): VulDB · Vendor: klapp

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2022-06-07 18:15 UTCPublished CVE record published
2026-06-17 03:15 UTCUpdated Record last modified

klapp app MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy app || rpm -q app || app --version

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2020-36533?

app: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2020-36533 being exploited?

CVE-2020-36533 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2020-36533 affect?

CVE-2020-36533 affects app. Severity is low (CVSS 3.7). 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 urgent is CVE-2020-36533?

Priority 42/100. Public exploit reference; Remotely exploitable, no login, no user action

Related CVEs

CVE-2023-50728 MEDIUM 5.4 DOWNGRADE UPGRADE octokit/webhooks is a GitHub webhook events toolset for Node.js
CVE-2020-36532 MEDIUM 4.3 MITIGATE A vulnerability has been found in Klapp App and classified as problematic

References

← Back to latest CVEs