Security readout for executives and security teams
Plain-English summary
CVE-2021-28890 is a reported SQL injection issue in J2eeFAST 2.2.1. A remote attacker may be able to manipulate database queries through certain request parameters. For executives, the concern is unauthorized database access or data exposure if this application is deployed and reachable.
Executive priority
Prioritize investigation if J2eeFAST 2.2.1 supports internal business workflows or is internet-accessible. The absence of CVSS and exploitation evidence lowers certainty, not potential impact. Database-facing injection flaws can create material confidentiality and integrity risk.
Technical view
The CVE describes SQL injection in J2eeFAST 2.2.1 involving compId, deptId, and roleId parameters on three fast/sys routes. The reported root cause is use of ${} to concatenate SQL statements. The source bundle does not provide CVSS, authentication requirements, patch details, or confirmed affected CPEs.
Likely exposure
Exposure is likely limited to organizations running J2eeFAST 2.2.1 with the referenced fast/sys routes reachable. The bundle does not identify other versions, downstream products, hosted services, or package names, so broader exposure should not be assumed.
Exploitation context
The CVE states remote attackers can perform SQL injection, but the bundle shows no CISA KEV entry and no cited evidence of active exploitation. Treat public reachability as the main urgency driver until vendor guidance or local evidence clarifies exploitability.
Researcher notes
Key gaps are auth requirements, exact patch state, affected version range, and exploit prevalence. The CVE references specific parameters and routes, plus ${} SQL concatenation, which gives defenders enough direction for code review and exposure validation without assuming unsupported product scope.
Mitigation direction
- Identify whether any deployed application uses J2eeFAST 2.2.1.
- Check the project issue and vendor guidance for fixed versions or recommended changes.
- Restrict access to affected administrative routes until remediation is confirmed.
- Review SQL mappings for unsafe ${} concatenation in affected queries.
- Monitor logs for unusual access to the referenced fast/sys endpoints.
Validation and detection
- Inventory deployed applications and source trees for J2eeFAST 2.2.1.
- Confirm whether the three referenced routes exist and are reachable.
- Review database query construction around compId, deptId, and roleId handling.
- Check access logs for suspicious requests to the affected list routes.
- Document authentication and network exposure for any confirmed instance.
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.
Database behavior lookup
The CVE wording references database injection or access, so collection and exfiltration review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2021-28890 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://gitee.com/zhouhuanOGP/J2EEFAST/issues/I3BOFQCVE 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.