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Fencer Intel
high 7.5

CVE-2021-27316 json

Blind SQL injection in contactus.php in doctor appointment system 1.0 allows an unauthenticated attacker to insert malicious SQL queries vi…

published 5y ago modified 4mo ago also EUVD-2021-14076

cvss
7.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
7.8%
EPSS 7.8% chance of exploitation in 30 days, percentile 94%
public exploits
0
none known, plus a Nuclei check

Summary

Blind SQL injection in contactus.php in doctor appointment system 1.0 allows an unauthenticated attacker to insert malicious SQL queries via lastname parameter.

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Exploit prediction

7.83% chance of exploitation in the next 30 days, higher than 94% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • Nuclei template Doctor Appointment System 1.0 - SQL Injection nuclei detection template
  • packetstormsecurity.com http://packetstormsecurity.com/files/161641/Doctor-Appointment-System-1.0-SQL-Injection.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:P/I:N/A:N

Classification

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

References

Sources

Fencer Intel 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.