CVE-2021-20520Network attack vector

Credential disclosure via embedded Web UI JavaScript

Published Mar 30, 2021 · Updated Sep 16, 2024

Stored XSS in IBM Jazz Foundation Products 6.0.2 through 7.0.2 allows remote authenticated users to disclose credentials via Web UI content. IBM has not disclosed the affected Web UI field, handler, or missing neutralization operation; it states only that users can embed arbitrary JavaScript. Exploitation requires low-privileged access and another user's interaction in a trusted session, allowing script execution that can alter UI behavior and expose credentials without affecting availability.

CVSS severity5.4
Medium
EPSS probability0.50%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Stored XSS in IBM Jazz Foundation Products 6.0.2 through 7.0.2 allows remote authenticated users to disclose credentials via Web UI content. IBM has not disclosed the affected Web UI field, handler, or missing neutralization operation; it states only that users can embed arbitrary JavaScript. Exploitation requires low-privileged access and another user's interaction in a trusted session, allowing script execution that can alter UI behavior and expose credentials without affecting availability.

The record

CVE
CVE-2021-20520
Published
Mar 30, 2021
Updated
Sep 16, 2024
Vendor
IBM
Product
IBM Engineering Lifecycle Optimization - Engineering Insights
Classifications
Unavailable
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 30, 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

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

IBM · IBM Engineering Lifecycle Optimization - Engineering Insightsversion=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=7.0.1; version=7.0.2

Published CVSS scores

5.2IBMCVSS:3.0/AC:L/A:N/S:C/PR:L/I:L/C:L/UI:R/AV:N/E:H/RL:O/RC:C
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

No sourced classifications are available.

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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo