CVE-2021-20446Network attack vector

Credential disclosure via Data Loader script injection

Published Feb 18, 2021 · Updated Sep 16, 2024

Cross-site scripting in IBM Maximo for Civil Infrastructure 7.6.2 allows remote authenticated users to expose credentials via the Web UI. The shipped Maximo Data Loader lacks an effective X-XSS-Protection header, allowing embedded JavaScript to execute in a trusted browser session. A low-privileged account and user interaction are required; successful exploitation can alter Web UI behavior and disclose session credentials.

CVSS severity5.4
Medium
EPSS probability0.56%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in IBM Maximo for Civil Infrastructure 7.6.2 allows remote authenticated users to expose credentials via the Web UI. The shipped Maximo Data Loader lacks an effective X-XSS-Protection header, allowing embedded JavaScript to execute in a trusted browser session. A low-privileged account and user interaction are required; successful exploitation can alter Web UI behavior and disclose session credentials.

The record

CVE
CVE-2021-20446
Published
Feb 18, 2021
Updated
Sep 16, 2024
Vendor
IBM
Product
IBM Maximo for Civil Infrastructure
Classifications
T1203
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 18, 2021CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 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=7.6.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

IBM · IBM Maximo for Civil Infrastructureversion=7.6.2

Published CVSS scores

5.4IBMCVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/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.

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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

T1203Exploitation for Client Execution

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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