Security readout for executives and security teams
Plain-English summary
CVE-2021-36503 is a critical SQL injection flaw reported in native-php-cms 1.0. A remote attacker could manipulate the category request parameter and run database commands. For an exposed site, the business risk is database theft, tampering, or service disruption.
Executive priority
Treat as urgent for any internet-facing native-php-cms 1.0 site. The vulnerability is critical by CVSS and could affect confidentiality, integrity, and availability of the backing database. Prioritize asset confirmation, exposure reduction, and vendor-guided remediation.
Technical view
The CVE describes CWE-89 SQL injection in the cat parameter of /list.php in native-php-cms 1.0. The CVSS 3.1 score is 9.8 with network access, low complexity, no privileges, and no user interaction required. Source metadata does not list CPEs or a named patch.
Likely exposure
Exposure is likely limited to organizations running native-php-cms 1.0, especially if /list.php is internet-accessible. The CVE affected-product metadata is incomplete, so confirm by software inventory and code review rather than CPE matching alone.
Exploitation context
The source bundle does not show CISA KEV listing or other evidence of active exploitation. The GitHub issue and CVE record describe remote SQL command execution through a request parameter, which is high-impact if the affected application is reachable.
Researcher notes
The public record is sparse: one GitHub issue is cited, affected CPE fields are empty, and no patch is named in the provided sources. Analysis should avoid assuming broader product lines or exploitation in the wild without additional evidence.
Mitigation direction
- Check the project repository and CVE record for vendor guidance or maintained fixes.
- Remove public access to affected native-php-cms 1.0 instances until remediated.
- Review /list.php cat handling and replace unsafe SQL construction with parameterized queries.
- Back up and inspect databases for unauthorized changes if exposure existed.
- Apply web application firewall rules only as temporary risk reduction.
Validation and detection
- Inventory web assets for native-php-cms 1.0 deployments.
- Confirm whether /list.php is reachable from untrusted networks.
- Review application code for unsanitized cat parameter SQL usage.
- Run authorized SQL injection checks in staging or a controlled production window.
- Check database and web logs for suspicious /list.php cat requests.
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.
CWE-89: Database access and collection lookup
Injection into data stores can inform collection, data access, and exfiltration detection reviews. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupDatabase 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-2021-36503 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
- Critical
- CVSS
- 9.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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 vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H3.95.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
9.8CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/Fanli2012/native-php-cms/issues/3CVE reference
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.