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CVE-2021-43140

43
FAUCET Score

CVE-2021-43140 is a critical SQL Injection vulnerability affecting Sourcecodester Simple Subscription Website 1.0, specifically within its login functionality. With a CVSS score of 9.8, this vulnerability is easily exploitable over the network without requiring user interaction or privileges, allowing for complete compromise of confidentiality, integrity, and availability. While not listed in CISA's KEV catalog, an exploit for authentication bypass is publicly available on ExploitDB, though there is minimal community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
1.0CPE matchmatch criteria
cpe:2.3:a:oretnom23:simple_subscription_website:1.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
4.73%
Probability of exploitation in next 30 days
EPSS Percentile
90.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
ExploitDB: EDB-50522 · Nov 15, 2021
This CVE's current EPSS score of 0.0473 is in the 85th percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

packetstormsecurity.com / files/164968/Simple-Subscription-Website-1.0-SQL-Injection.html
ExploitThird Party AdvisoryVDB Entry
github.com / Dir0x/CVE-2021-43140
ExploitThird Party Advisory
github.com / nu11secur1ty/CVE-mitre/tree/main/CVE-2021-43140
ExploitThird Party Advisory