Security readout for executives and security teams
Plain-English summary
CVE-2021-26082 is a stored cross-site scripting issue in Jira Server and Jira Data Center XML Export. In affected versions, an attacker could inject HTML or JavaScript that later runs in another user’s browser. The provided sources do not include CVSS scoring or evidence of active exploitation.
Executive priority
Prioritize remediation for internet-facing or broadly accessible Jira instances, but treat severity as unscored from the provided evidence. The business concern is browser-side compromise of Jira users through stored script execution.
Technical view
Atlassian reports that XML Export in Jira Server and Jira Data Center before 8.5.14, 8.6.0 through before 8.13.6, and 8.14.0 through before 8.17.0 allows remote stored HTML or JavaScript injection. Required privileges, exploit prerequisites, and impact scope are not specified in the supplied bundle.
Likely exposure
Exposure is limited to Jira Server or Jira Data Center deployments in the listed affected ranges. Cloud exposure is not stated. Risk is higher where untrusted or broad user groups can create content that reaches XML Export workflows.
Exploitation context
The bundle says remote attackers can inject stored HTML or JavaScript through XML Export. It does not cite CISA KEV listing, public exploitation, proof-of-concept availability, or exploitation in the wild.
Researcher notes
The sources identify product, vulnerable version ranges, and vulnerability class, but omit CVSS, CWE, privileges required, affected export paths, and patch mechanics beyond fixed version thresholds. Avoid assuming exploitation or exact trigger conditions without Atlassian details.
Mitigation direction
- Upgrade Jira Server/Data Center to 8.5.14, 8.13.6, 8.17.0, or later supported fixed releases.
- Review Atlassian JRASERVER-72393 for vendor-specific remediation details.
- Restrict XML Export access where operationally feasible until upgrade completion.
- Limit Jira content creation rights for untrusted users in affected deployments.
Validation and detection
- Inventory Jira Server and Data Center versions across all environments.
- Compare versions against affected ranges listed in the CVE source bundle.
- Confirm whether XML Export is enabled or reachable by broad user groups.
- Review Atlassian advisory JRASERVER-72393 for any updated fixed-version guidance.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
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
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CVE-2021-26082 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://jira.atlassian.com/browse/JRASERVER-72393CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.