CVE-2021-20518Network attack vector

Credential disclosure via Web UI script injection

Published Mar 30, 2021 · Updated Sep 17, 2024

Cross-site scripting in IBM Jazz Foundation Products allows remote authenticated users to run JavaScript in the Web UI. IBM has not disclosed the affected input, handler, or missing neutralization operation. Low-privileged access and victim interaction are required, and successful exploitation can disclose credentials within the victim's trusted session.

CVSS severity5.4
Medium
EPSS probability0.50%
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 run JavaScript in the Web UI. IBM has not disclosed the affected input, handler, or missing neutralization operation. Low-privileged access and victim interaction are required, and successful exploitation can disclose credentials within the victim's trusted session.

The record

CVE
CVE-2021-20518
Published
Mar 30, 2021
Updated
Sep 17, 2024
Vendor
IBM
Product
IBM Engineering Lifecycle Optimization - Engineering Insights
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 30, 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=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

3.5NVDAV:N/AC:M/Au:S/C:N/I:P/A:N
5.4NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
5.4IBMCVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
4.7IBMCVSS:3.0/AC:L/A:N/S:C/PR:L/I:L/UI:R/C:L/AV:N/E:U/RL:O/RC:C

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')
T1059.007JavaScript/JScript

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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