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CVE-2018-21020

25
FAUCET Score

CVE-2018-21020 is a PHP type juggling vulnerability in centreonAuth.class.php affecting Centreon Web before version 2.8.27, which could allow attackers to bypass authentication. Rated 7.5 HIGH, this vulnerability has a network attack vector, low attack complexity, and high impact on integrity, with no impact on confidentiality or availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.8.27CPE matchmatch criteria
cpe:2.3:a:centreon:centreon_web:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.98%
Probability of exploitation in next 30 days
EPSS Percentile
78.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0198 is in the 62nd percentile among its peer group of 51,551 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

github.com / centreon/centreon/pull/7084
Third Party Advisory
openwall.com / lists/oss-security/2019/10/08/1
Mailing ListThird Party Advisory
openwall.com / lists/oss-security/2019/10/09/2
Mailing ListThird Party Advisory