CVE-2021-26038

[20210704] - Core - Privilege escalation through com_installer

HIGH
7.5
CVSS Score
Published: July 7, 2021 at 10:12 AM UTC
Updated: June 17, 2026 at 03:42 AM UTC
1 product affected across 1 vendorJoomla!

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Severity
HIGH7.5
Exploit prediction
EPSS 1.0%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

2.5.0 ≤ v ≤ 3.9.272.5.0-3.9.27

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-754

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