CVE-2020-36532Public exploitNetwork attack vector

Parent impersonation via overbroad authorization-code response

Published Jun 3, 2022 · Updated Apr 15, 2025

Authorization-code disclosure in Klapp App allows remote authenticated users to obtain other parents' registration credentials. An authenticated server response returns authorization codes for every parent in a class instead of limiting the JSON object to the requesting parent's code. Any registered parent in that class can use an exposed unique identifier to impersonate another parent.

CVSS severity4.3
Medium
EPSS probability0.99%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authorization-code disclosure in Klapp App allows remote authenticated users to obtain other parents' registration credentials. An authenticated server response returns authorization codes for every parent in a class instead of limiting the JSON object to the requesting parent's code. Any registered parent in that class can use an exposed unique identifier to impersonate another parent.

The record

CVE
CVE-2020-36532
Published
Jun 3, 2022
Updated
Apr 15, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-200, CWE-668, T1552
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 3, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 15, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

4.0NIST NVDAV:N/AC:L/Au:S/C:P/I:N/A:N
6.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
4.3VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-200Exposure of Sensitive Information to an Unauthorized Actor
CWE-668Exposure of Resource to Wrong Sphere
T1552Unsecured Credentials

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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