Security readout for executives and security teams
Plain-English summary
EgavilanMedia PHPCRUD 1.0 has a high-severity SQL injection issue. An unauthenticated attacker could abuse a form input to interfere with database queries and potentially extract sensitive database information. The sources do not name an official patch.
Executive priority
Prioritize remediation for any internet-facing deployment because the issue can expose database contents without credentials. If PHPCRUD is only unused sample code, remove or isolate it promptly.
Technical view
The vulnerability is CWE-89 SQL injection in EgavilanMedia PHPCRUD 1.0, affecting the firstname parameter handled by insert.php. CVSS v4.0 is 8.8 with network access, low complexity, no privileges, and no user interaction required.
Likely exposure
Exposure is likely limited to sites running EgavilanMedia PHPCRUD 1.0 or code copied from that project with the vulnerable insert workflow publicly reachable.
Exploitation context
A public ExploitDB reference exists, but the bundle does not show CISA KEV listing or confirmed active exploitation. Treat internet-facing deployments as urgent because exploitation requires no authentication.
Researcher notes
Evidence supports PHPCRUD 1.0, firstname, insert.php, CWE-89, CVSS 8.8, and a public exploit reference. The source bundle does not confirm active exploitation, patch availability, affected later versions, or CPE identifiers.
Mitigation direction
- Inventory applications using EgavilanMedia PHPCRUD 1.0 or copied sample code.
- Check EgavilanMedia and advisory sources for vendor patch or replacement guidance.
- Restrict public access to the affected insert workflow where possible.
- If maintaining the code, use parameterized database queries for affected inputs.
- Review logs for suspicious unauthenticated insert activity and database errors.
Validation and detection
- Confirm whether PHPCRUD 1.0 exists in production, staging, or legacy web roots.
- Review insert workflow input handling for unsafe SQL construction around firstname.
- Verify unauthenticated users cannot reach vulnerable database-write paths unnecessarily.
- Check application and database logs for unusual queries, errors, or data access patterns.
- Document compensating controls if no vendor patch is available.
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-2021-47956 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
- High
- CVSS
- 8.8 (4.0)
- Known Exploited
- No
- Published
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N
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.
SSVC decision data
CVSS vector scores
2 official scoresWe 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:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N——VulnCheckCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N3.94.2VulnCheckVulnerability scoring details
Base CVSS 4.0 score
8.8HighVector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N
Base CVSS 3.1 score
8.2HighVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- ExploitDB-49878CVE reference, VulnCheck · exploit
- Official Product HomepageCVE reference, VulnCheck · product
- Product ReferenceCVE reference, VulnCheck · product
- VulnCheck Advisory: EgavilanMedia PHPCRUD 1.0 SQL Injection via firstnameCVE reference, VulnCheck · third-party-advisory
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.