CVE-2020-4536Network attack vector

Sensitive information disclosure via detailed error messages

Published May 11, 2021 · Updated Sep 17, 2024

Information disclosure in IBM OpenPages GRC Platform 8.1 allows remote authenticated users to obtain sensitive data through browser error messages. The web interface improperly validates input and returns detailed technical error messages containing sensitive system information. A valid low-privilege account is required, and the exposed details can support further attacks without altering data or service availability.

CVSS severity4.3
Medium
EPSS probability0.98%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in IBM OpenPages GRC Platform 8.1 allows remote authenticated users to obtain sensitive data through browser error messages. The web interface improperly validates input and returns detailed technical error messages containing sensitive system information. A valid low-privilege account is required, and the exposed details can support further attacks without altering data or service availability.

The record

CVE
CVE-2020-4536
Published
May 11, 2021
Updated
Sep 17, 2024
Vendor
IBM
Product
OpenPages
Classifications
CWE-209, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 11, 2021CVE publishedPublication date reported by the CVE source.
  2. Sep 17, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=8.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

IBM · OpenPagesversion=8.1

Published CVSS scores

3.8IBMCVSS:3.0/UI:N/A:N/AC:L/AV:N/C:L/I:N/PR:L/S:U/E:U/RC:C/RL:O
4.3IBMCVSS:3.0/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 exploitUnconfirmed

Weakness, pattern, technique

CWE-209Generation of Error Message Containing Sensitive Information
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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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