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CVE Record

CVE-2021-41310: Affected versions of Atlassian Jira Server and Data Center allow anonymous remote attackers to inject arbit...

Affected versions of Atlassian Jira Server and Data Center allow anonymous remote attackers to inject arbitrary HTML or JavaScript via a Cross-Site Scripting (XSS) vulnerability in the Associated Projects feature (/secure/admin/AssociatedProjectsForCustomField.jspa). The affected versions are before version 8.5.19, from version 8.6.0 before 8.13.11, and from version 8.14.0 before 8.19.1.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

This issue lets an anonymous remote attacker inject HTML or JavaScript into affected Atlassian Jira Server and Data Center versions. For business leaders, the concern is browser-side compromise of Jira users or administrators through a trusted Jira page, not direct server takeover based on the provided sources.

Executive priority

Treat this as a targeted Jira hardening and patching item. It is not evidenced as actively exploited in the provided bundle, but anonymous remote XSS in a collaboration platform warrants timely remediation, especially for internet-facing Jira.

Technical view

CVE-2021-41310 is a cross-site scripting flaw in Jira Server and Data Center's Associated Projects feature at /secure/admin/AssociatedProjectsForCustomField.jspa. Affected ranges are before 8.5.19, 8.6.0 through before 8.13.11, and 8.14.0 through before 8.19.1.

Likely exposure

Exposure is likely where affected Jira Server or Data Center instances are internet-accessible or reachable by untrusted users. The source states anonymous remote attackers can trigger the issue, so authentication should not be assumed as a protective control.

Exploitation context

The supplied sources do not show CISA KEV listing or active exploitation. They do state anonymous remote XSS capability. Evidence is incomplete on exploit prevalence, CVSS score, CWE mapping, and whether exploitation requires specific configuration beyond the Associated Projects feature.

Researcher notes

The record lacks CVSS, CWE, and detailed exploit conditions. Do not infer server-side code execution. The strongest source-backed facts are product scope, anonymous remote XSS, affected version ranges, and the specific Associated Projects endpoint.

Mitigation direction

  • Upgrade affected Jira Server and Data Center instances outside the listed vulnerable ranges.
  • Prioritize externally reachable Jira instances and environments used by administrators.
  • Review Atlassian JRASERVER-72800 for vendor-specific remediation and support guidance.
  • Restrict anonymous access where business requirements allow.
  • Monitor Jira and proxy logs for access to the affected endpoint.

Validation and detection

  • Inventory Jira Server and Data Center versions across production and non-production environments.
  • Compare each instance against the affected version ranges in the CVE record.
  • Confirm whether /secure/admin/AssociatedProjectsForCustomField.jspa is reachable from untrusted networks.
  • Review web, proxy, and Jira logs for suspicious access to the Associated Projects endpoint.
  • Verify upgraded instances report 8.5.19, 8.13.11, 8.19.1, or a later supported release.
Prepared
Confidence
medium
Sources
3

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

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CVE-2021-41310 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
AtlassianJira Serverunspecified, 8.6.0, unspecified, 8.14.0, unspecifiedListed
AtlassianJira Data Centerunspecified, 8.6.0, unspecified, 8.14.0, unspecifiedListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.