CVE-2021-47956
📛 CVE Title
(no title)
Description
EgavilanMedia PHPCRUD 1.0 contains an SQL injection vulnerability that allows unauthenticated attackers to manipulate database queries by injecting SQL code through the firstname parameter. Attackers can send POST requests to insert.php with malicious firstname values to extract sensitive database information.
Overview
- State
- —
- Assigner (CNA)
- —
- CVSS severity
- high
- CVSS score
- 8.2 / 10
- CVSS vector
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N- Effective score
- 8.2 / 10 HIGH source: CNA overview
- CWE(s)
- —
- Reserved
- —
- Published
- —
- Last updated
- —
- Source
- https://www.tenable.com/cve/CVE-2021-47956
- Linked Threat
- CVE-2021-47956 — CVE-2021-47956
NVD triage scoring NVD CVE 2.0
Layer NVD adds on top of the CNA's CVE record — published / last-modified timestamps, exploitability / impact subscores, and the FIRST.org EPSS probability that this CVE will be exploited in the wild in the next 30 days.
- NVD published
- 2026-05-16 16:16:21 UTC
- NVD last modified
- 2026-05-18 19:42:03 UTC
- NVD CVSS v3.1
- 8.2 / 10 HIGH source: disclosure@vulncheck.com
- NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N- Exploitability subscore
- 3.9 / 10
- Impact subscore
- 4.2 / 10
- EPSS score
- 0.0009 (probability of exploitation in next 30 days)
- EPSS percentile
- 25.25% vs all CVEs — higher = more likely to be exploited, as of 2026-05-24
NVD-assigned CWE(s):
CWE-89
(differs from the CNA list above)
NVD / KEV / EPSS data refreshed 2026-05-25 00:06 UTC. Re-run the 🛰 Backfill from NVD button above to refresh.
European Union Vulnerability Database ENISA EUVD
ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.
- EUVD ID
-
EUVD-2021-34824 - Assigner
- VulnCheck
- Published
- May 16, 2026, 3:26:08 PM
- Updated
- May 18, 2026, 12:40:23 PM
- EUVD base score (CVSS 4.0)
-
8.8 / 10
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 - EUVD-reported EPSS
- 0.0900
- Vendors
- Egavilanmedia
- Products
-
EgavilanMedia PHPCRUD (1.0)
- Aliases
-
GHSA-3hwx-xp9p-5jv3
ENISA description: EgavilanMedia PHPCRUD 1.0 contains an SQL injection vulnerability that allows unauthenticated attackers to manipulate database queries by injecting SQL code through the firstname parameter. Attackers can send POST requests to insert.php with malicious firstname values to extract sensitive database information.
Vendor references (0)
References embedded in the original CVE record by the assigning CNA.
None in the CVE record.
Web references (7)
DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.
- https://egavilanmedia.com tenable:egavilanmedia.com
- https://egavilanmedia.com/crud-operation-with-php-mysql-bootstrap-and-dompdf/ tenable:egavilanmedia.com
- https://nvd.nist.gov/vuln/detail/CVE-2021-47956 tenable:nvd.nist.gov
- https://www.cve.org/CVERecord?id=CVE-2021-47956 tenable:www.cve.org
- https://www.exploit-db.com/exploits/49878 tenable:www.exploit-db.com
- https://www.first.org/epss/ tenable:www.first.org
- https://www.vulncheck.com/advisories/egavilanmedia-phpcrud-sql-injection-via-firstname tenable:www.vulncheck.com
NVD-tagged references (4)
Reference list NVD curates from the CNA record, vendor advisories, and third-party reports. The tag chips below are NVD's analyst-assigned categories.
- https://egavilanmedia.com disclosure@vulncheck.com
- https://egavilanmedia.com/crud-operation-with-php-mysql-bootstrap-and-dompdf/ disclosure@vulncheck.com
- https://www.exploit-db.com/exploits/49878 disclosure@vulncheck.com
- https://www.vulncheck.com/advisories/egavilanmedia-phpcrud-sql-injection-via-firstname disclosure@vulncheck.com
Remediations (10)
Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.
-
web:4sysops.com
Starting in April 2026, Windows updates will change the default Kerberos ticket issuance behavior to AES-SHA1 for accounts without explicit encryption settings, while RC4 can still be used where explicitly enabled. This change, driven by CVE -2026-20833, affects every Windows Server environment where service accounts or devices still rely on RC4. Any service account, NAS device, or legacy ...
2026-05-26 02:55 UTC -
web:appuals.com
The Windows Update Troubleshooter helps find and fix problems that stop updates from installing. It checks for issues like missing or damaged files, wrong settings, and disabled update services. By fixing these, it helps your system connect to Microsoft's update servers so updates can be downloaded and applied smoothly.
2026-05-26 02:55 UTC -
web:cyberpress.org
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has added two actively exploited Microsoft Defender vulnerabilities to its Known Exploited Vulnerabilities (KEV) catalog, issuing an urgent remediation directive for federal agencies with a due date of June 3, 2026.
2026-05-26 02:55 UTC -
web:msrc.microsoft.com
The Microsoft Security Response Center (MSRC) investigates all reports of security vulnerabilities affecting Microsoft products and services, and provides the information here as part of the ongoing effort to help you manage security risks and help keep your systems protected.
2026-05-26 02:55 UTC -
web:nvd.nist.gov
An official website of the United States government Here's how you know
2026-05-26 02:55 UTC -
web:securitricks.com
CVE CVE-2021-47956 - Score : 8.8 - Source : disclosure@vulncheck.com - Description : EgavilanMedia PHPCRUD 1.0 contains an SQL injection vulnerability that allows unauthenticated attackers to manipulate database queries by injecting SQL code through the firstname parameter. Attackers can send POST requests to insert.php with malicious firstname values to extract sensitive database information ...
2026-05-26 02:55 UTC -
web:www.howtogeek.com
In this case, use your PC's built-in Windows Update troubleshooter to automatically find and fix issues with your updates. Only a little interaction is required from your end. To run that tool, go to Settings > Update & Security > Troubleshoot > Additional Troubleshooters > Windows Update and click "Run the Troubleshooter".
2026-05-26 02:55 UTC -
web:www.oracle.com
This Critical Patch Update contains 481 new security patches across the product families listed below. Please note that an MOS note summarizing the content of this Critical Patch Update and other Oracle Software Security Assurance activities is located at April 2026 Critical Patch Update: Executive Summary and Analysis.
2026-05-26 02:55 UTC -
web:www.tomshardware.com
A common Windows Blue Screen of Death stop code is labeled IRQL_NOT_LESS_OR_EQUAL. This cryptic name refers to an Interruption ReQuest Line (IRQL) that PCs use to signal events in urgent need of ...
2026-05-26 02:55 UTC -
web:www.wowhead.com
Here you'll find a list of hotfixes that address various issues related to World of Warcraft: Midnight, Mists of Pandaria Classic, Season of…
2026-05-26 02:55 UTC
AI Forensic Analysis
Only Available for Registered Users. Sign in to view.