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Fencer Vulns
high 7.5

CVE-2018-21020 json

In very rare cases, a PHP type juggling vulnerability in centreonAuth.class.php in Centreon Web before 2.8.27 allows attackers to bypass au…

published 2019-10-08 7 y ago modified 2026-06-17 4 mo ago also EUVD-2018-13543

cvss
7.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.0%
EPSS 2.0% chance of exploitation in 30 days, percentile 80%
public exploits
0
none known

Summary

In very rare cases, a PHP type juggling vulnerability in centreonAuth.class.php in Centreon Web before 2.8.27 allows attackers to bypass authentication mechanisms in place.

Patch / fix

  • centreon centreon_web 2.8.27

Exploit prediction

1.98% chance of exploitation in the next 30 days, higher than 80% of all scored CVEs (FIRST EPSS, 2026-11-08).

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:N/I:H/A:N
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:P/A:N

Classification

Weakness
  • CWE-20 Improper Input Validation

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.