What’s Vulnerable › Vulnerabilities

CVE-2021-26804

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-05-04 · updated 2026-06-17
• Weakness: CWE-276

Description

Insecure Permissions in Centreon Web versions 19.10.18, 20.04.8, and 20.10.2 allows remote attackers to bypass validation by changing any file extension to ".gif", then uploading it in the "Administration/ Parameters/ Images" section of the application.

Affected products

• Centreon: 19.10.18, 20.04.8, 20.10.2

References

• https://medium.com/%40pedro.ferreira.phf/vulnerability-affecting-some-versions-of-centreon-2b34bd6dc621
• https://medium.com/%40pedro.ferreira.phf/vulnerability-affecting-some-versions-of-centreon-2b34bd6dc621

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