Skip to content
Fencer Vulns
medium 6.1

CVE-2021-27318 json

Cross Site Scripting (XSS) vulnerability in contactus.php in Doctor Appointment System 1.0 allows remote attackers to inject arbitrary web…

published 2021-03-01 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-14078

cvss
6.1
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.5%
EPSS 1.5% chance of exploitation in 30 days, percentile 74%
public exploits
0
none known

Summary

Cross Site Scripting (XSS) vulnerability in contactus.php in Doctor Appointment System 1.0 allows remote attackers to inject arbitrary web script or HTML via the lastname parameter.

Exploit prediction

1.49% chance of exploitation in the next 30 days, higher than 74% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • packetstormsecurity.com http://packetstormsecurity.com/files/161574/Doctor-Appointment-System-1.0-Cross-Site-Scripting.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:P/A:N

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation

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.