CVE-2021-21653Network attack vector

Credential ID disclosure via unchecked HTTP endpoint

Published May 11, 2021 · Updated Aug 3, 2024

Information disclosure in Xray - Test Management for Jira Plugin 2.4.0 and earlier allows remote authenticated users to enumerate credential IDs. An HTTP endpoint returns identifiers for credentials stored in Jenkins without checking the appropriate permission; Jenkins has not published the endpoint or method name. Overall/Read permission is required, and the disclosed identifiers enable credential capture only when combined with another vulnerability.

CVSS severity4.3
Medium
EPSS probability0.86%
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 Xray - Test Management for Jira Plugin 2.4.0 and earlier allows remote authenticated users to enumerate credential IDs. An HTTP endpoint returns identifiers for credentials stored in Jenkins without checking the appropriate permission; Jenkins has not published the endpoint or method name. Overall/Read permission is required, and the disclosed identifiers enable credential capture only when combined with another vulnerability.

The record

CVE
CVE-2021-21653
Published
May 11, 2021
Updated
Aug 3, 2024
Vendor
Jenkins Project
Product
Xray - Test Management for Jira Plugin
Classifications
Unavailable
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 11, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 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=unspecified <=2.4.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Jenkins Project · Xray - Test Management for Jira Pluginversion=unspecified <=2.4.0

Published CVSS scores

4.0NIST NVDAV:N/AC:L/Au:S/C:P/I:N/A:N
4.3NIST NVDCVSS:3.1/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

No sourced classifications are available.

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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