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Fencer Vulns
critical 9.8

CVE-2021-41511 json

The username and password field of login in Lodging Reservation Management System V1 can give access to any user by using SQL injection to…

published 2021-10-04 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-28530

cvss
9.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
3.4%
EPSS 3.4% chance of exploitation in 30 days, percentile 88%
public exploits
0
none known

Summary

The username and password field of login in Lodging Reservation Management System V1 can give access to any user by using SQL injection to bypass authentication.

Exploit prediction

3.37% chance of exploitation in the next 30 days, higher than 88% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/Ni7inSharma/CVE-2021-41511 referenced PoC, tagged "exploit" by a source, unverified
  • exploit-db.com https://www.exploit-db.com/exploits/50372 referenced PoC, tagged "exploit" by a source, unverified
  • packetstormsecurity.com http://packetstormsecurity.com/files/164366/Lodging-Reservation-Management-System-1.0-SQL-Injection.html referenced PoC, tagged "exploit" by a source, unverified
  • streamable.com https://streamable.com/9fq8uw referenced PoC, tagged "exploit" by a source, unverified
  • nu11secur1ty.com https://www.nu11secur1ty.com/2021/10/cve-2021-41511.html 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.