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CVE-2021-47966

📛 CVE Title

(no title)

⬇ Download JSON ⚠ View as Threat

Description

PHP Timeclock 1.04 contains time-based and boolean-based blind SQL injection vulnerabilities in the login_userid parameter of login.php that allows unauthenticated attackers to extract database contents. Attackers can submit crafted POST requests with SQL payloads using SLEEP functions or RLIKE conditional statements to dump sensitive database information including employee names and credentials.

Overview

State
—
Assigner (CNA)
—
CVSS severity
high
CVSS score
CVSS 8.2 / 10 8.2 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-2021-47966
Linked Threat
CVE-2021-47966 — CVE-2021-47966

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
2026-05-15 19:16:56 UTC
NVD last modified
2026-05-18 17:33:27 UTC
NVD CVSS v3.1
CVSS 8.2 / 10 8.2 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 00:08 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-2021-34819
Assigner
VulnCheck
Published
May 15, 2026, 6:36:32 PM
Updated
May 15, 2026, 10:22:09 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
Timeclock
Products
PHP Timeclock (1.04)
Aliases
GHSA-c527-x2v3-x59w

ENISA description: PHP Timeclock 1.04 contains time-based and boolean-based blind SQL injection vulnerabilities in the login_userid parameter of login.php that allows unauthenticated attackers to extract database contents. Attackers can submit crafted POST requests with SQL payloads using SLEEP functions or RLIKE conditional statements to dump sensitive database information including employee names and credentials.

EUVD references (4)

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.

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.

Remediations (10)

Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.

AI Forensic Analysis

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Raw JSON

The full cvelistV5 record. Download as CVE-2021-47966.json.

Not stored.