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Fencer Vulns
high 8.8

CVE-2018-20556 in the critical feed json

SQL injection vulnerability in Booking Calendar plugin 8.4.3 for WordPress allows remote attackers to execute arbitrary SQL commands via th…

published 2019-03-18 7 y ago modified 2026-06-17 4 mo ago also EUVD-2018-13110

cvss
8.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
18.9%
EPSS 18.9% chance of exploitation in 30 days, percentile 97%
public exploits
1
Exploit-DB

Summary

SQL injection vulnerability in Booking Calendar plugin 8.4.3 for WordPress allows remote attackers to execute arbitrary SQL commands via the booking_id parameter.

Timeline

  1. First public exploit (EDB-46377)
  2. Published

Exploit prediction

18.91% chance of exploitation in the next 30 days, higher than 97% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-46377 WordPress Plugin Booking Calendar 8.4.3 - (Authenticated) SQL Injection webapps, 2019-02-14
  • packetstormsecurity.com http://packetstormsecurity.com/files/151692/WordPress-Booking-Calendar-8.4.3-SQL-Injection.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.0 8.8 CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 6.5 AV:N/AC:L/Au:S/C:P/I:P/A:P

Classification

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

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.