Security readout for executives and security teams
Plain-English summary
JetBrains YouTrack versions before 2021.2.17925 had a stored cross-site scripting flaw. Stored XSS means malicious content could persist in the application and later run in another user's browser. For businesses using YouTrack, the concern is account or session misuse and exposure of project data if a vulnerable instance remains unpatched.
Executive priority
Prioritize remediation for any production or internet-exposed YouTrack instance below 2021.2.17925. The issue is not confirmed exploited in the provided sources, but stored XSS in a project-tracking platform can affect sensitive engineering and operational workflows.
Technical view
CVE-2021-37552 describes stored XSS in JetBrains YouTrack before 2021.2.17925. The provided sources do not identify the affected field, required privileges, CVSS score, CWE, or exploit prerequisites. The clearest remediation signal is the fixed version boundary in the CVE description and JetBrains bulletin reference.
Likely exposure
Exposure is limited to organizations running JetBrains YouTrack earlier than 2021.2.17925. Publicly reachable YouTrack instances or instances with broad user access should be prioritized because stored XSS can affect other authenticated users after malicious content is saved.
Exploitation context
The source bundle does not report active exploitation, and the CVE is not listed as KEV. Treat exploitation status as unknown, not confirmed. No public exploit details are included in the provided sources.
Researcher notes
Evidence is sparse. The available CVE text confirms stored XSS and the affected version boundary, but omits vulnerable component, privileges, attack vector, CVSS, and CWE. Avoid assumptions beyond YouTrack before 2021.2.17925 unless JetBrains provides more detail.
Mitigation direction
- Upgrade YouTrack to version 2021.2.17925 or later.
- Review the JetBrains security bulletin for vendor-specific guidance.
- Inventory all YouTrack instances, including self-hosted and externally exposed systems.
- If immediate upgrade is not possible, reduce access pending vendor guidance.
Validation and detection
- Confirm each YouTrack instance version is 2021.2.17925 or later.
- Check asset inventory for forgotten or externally exposed YouTrack deployments.
- Review recent YouTrack content and audit logs for suspicious stored script-like content.
- Verify remediation against the JetBrains bulletin and CVE record.
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-2021-37552 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://blog.jetbrains.com/blog/2021/08/05/jetbrains-security-bulletin-q2-2021/CVE 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.