VulnerabilityModified

CVE-2021-26038

Install action in com_installer lack the required hardcoded ACL checks for superusers.

HIGH 7.5EPSS 1.00%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (1.00%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

An issue was discovered in Joomla! 2.5.0 through 3.9.27. Install action in com_installer lack the required hardcoded ACL checks for superusers. A default system is not affected cause the default ACL for com_installer is limited to super users already.

CVSS 3.1: 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
EPSS: 1.00% probability · 61th percentile
CISA KEV: Not listed
Weakness: CWE-754
Affected: joomla/joomla\!
Source: security@joomla.org

References

https://developer.joomla.org/security-centre/859-20210704-core-privilege-escalation-through-com-installer.htmlVendor Advisory
https://developer.joomla.org/security-centre/859-20210704-core-privilege-escalation-through-com-installer.htmlVendor Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.