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Fencer Vulns
critical 9.8

CVE-2021-42665 json

An SQL Injection vulnerability exists in Sourcecodester Engineers Online Portal in PHP via the login form inside of index.php, which can al…

published 2021-11-05 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-29626

cvss
9.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
5.0%
EPSS 5.0% chance of exploitation in 30 days, percentile 92%
public exploits
0
none known

Summary

An SQL Injection vulnerability exists in Sourcecodester Engineers Online Portal in PHP via the login form inside of index.php, which can allow an attacker to bypass authentication.

Exploit prediction

4.99% chance of exploitation in the next 30 days, higher than 92% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/TheHackingRabbi/CVE-2021-42665 referenced PoC, tagged "exploit" by a source, unverified
  • exploit-db.com https://www.exploit-db.com/exploits/50452 referenced PoC, tagged "exploit" by a source, unverified
  • github.com https://github.com/nu11secur1ty/CVE-mitre/tree/main/CVE-2021-42665 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

Classification

Weakness
  • CWE-89 Improper Neutralization of Special Elements used in an SQL Command

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.