Security readout for executives and security teams
Plain-English summary
CVE-2021-36455 is a reported SQL injection in Navigate CMS 2.9. A crafted quicksearch input in the comments package may allow database interaction beyond the application's intended controls. Public evidence confirms the bug report and a vendor update reference, but does not provide CVSS scoring or confirmed exploitation.
Executive priority
Treat as a priority for any internet-facing Navigate CMS 2.9 site. The absence of CVSS and KEV evidence lowers certainty, not potential business impact, because SQL injection can threaten website data and trust.
Technical view
The CVE describes SQL injection through the quicksearch parameter in Navigate CMS 2.9 at lib/packages/comments/comments.php. The source bundle lists no CWE, CVSS vector, CPE, or affected-version range beyond Navigate CMS 2.9, so exposure assessment must be deployment-specific.
Likely exposure
Organizations are likely exposed only if they run Navigate CMS 2.9 and expose the affected comments quicksearch functionality, especially on public websites. The CVE record does not identify other products or versions.
Exploitation context
The provided sources do not show CISA KEV listing or confirmed active exploitation. SQL injection is commonly serious because it can affect database confidentiality and integrity, but this specific record lacks exploit-status and impact detail.
Researcher notes
The record is sparse: no CVSS, CWE, CPE, or detailed affected-version range is supplied. Keep findings tied to Navigate CMS 2.9, the quicksearch parameter, and comments.php unless vendor or maintainer evidence broadens scope.
Mitigation direction
- Inventory Navigate CMS deployments and confirm any version 2.9 instances.
- Review the vendor Navigate CMS 2.9.4 update notice for applicable remediation.
- Apply vendor-supported updates or guidance for affected installations.
- Restrict access to affected comments quicksearch functionality until remediated.
- Monitor application and database logs for suspicious quicksearch activity.
Validation and detection
- Confirm whether Navigate CMS 2.9 is present in production or staging.
- Check whether lib/packages/comments/comments.php is deployed and reachable.
- Review the GitHub issue and vendor update notice against installed code.
- Verify remediation through safe application testing in a controlled environment.
- Confirm logs show no unexpected database errors or suspicious search patterns.
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-2021-36455 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://github.com/NavigateCMS/Navigate-CMS/issues/25CVE reference · x_refsource_MISC
- https://www.navigatecms.com/en/blog/development/navigate_cms_update_2_9_4CVE 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.