CVE-2021-20357Network attack vector

Credential disclosure via embedded Web UI JavaScript

Published Jan 27, 2021 · Updated Sep 16, 2024

Cross-site scripting in IBM Jazz Foundation products allows remote authenticated users to expose credentials through crafted Web UI content. IBM has not disclosed the affected field, endpoint, or encoding failure; its bulletin states only that the Web UI permits arbitrary JavaScript to be embedded. Exploitation requires low-privileged access and interaction by another user in a trusted session, where the script can alter page behavior and disclose credentials.

CVSS severity5.4
Medium
EPSS probability0.66%
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 Jazz Foundation products allows remote authenticated users to expose credentials through crafted Web UI content. IBM has not disclosed the affected field, endpoint, or encoding failure; its bulletin states only that the Web UI permits arbitrary JavaScript to be embedded. Exploitation requires low-privileged access and interaction by another user in a trusted session, where the script can alter page behavior and disclose credentials.

The record

CVE
CVE-2021-20357
Published
Jan 27, 2021
Updated
Sep 16, 2024
Vendor
IBM
Product
IBM Engineering Systems Design Rhapsody - Model Manager
Classifications
CWE-79, T1203
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 27, 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

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=6.0.2
  2. Affected versionversion=6.0.6
  3. Affected versionversion=6.0.6.1
  4. Affected versionversion=7.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

IBM · IBM Engineering Systems Design Rhapsody - Model Managerversion=6.0.2; version=6.0.6; version=6.0.6.1; version=7.0
IBM · IBM Engineering Requirements Management DOORS Nextversion=6.0.2; version=6.0.6; version=6.0.6.1; version=7.0
IBM · IBM Engineering Lifecycle Optimization - Engineering Insightsversion=7.0
IBM · IBM Engineering Systems Design Rhapsody - Design Managerversion=6.0.2; version=6.0.6; version=6.0.6.1
IBM · IBM Engineering Workflow Managementversion=6.0.2; version=6.0.6; version=6.0.6.1; version=7.0; version=7.0.2
IBM · Engineering Lifecycle Managementversion=6.0.2; version=6.0.6; version=6.0.6.1
IBM · Engineering Test Managementversion=6.0.2; version=6.0.6; version=6.0.6.1; version=7.0.0

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.

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-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
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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