CVE-2021-33199
CRITICAL
9.8
CVSS Score
Published: August 12, 2021 at 08:46 PM UTC
Updated: June 17, 2026 at 03:54 AM UTC
1 product affected across 1 vendorExpressionEngine
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Severity
CRITICAL9.8
Exploit prediction
EPSS 1%
Description
In Expression Engine before 6.0.3, addonIcon in Addons/file/mod.file.php relies on the untrusted input value of input->get('file') instead of the fixed file names of icon.png and icon.svg.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v < 6.0.3
Affected range stops below 6.0.3, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
References (2)
x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://github.com/ExpressionEngine/ExpressionEngine/compare/6.0.1...6.0.3#diff-17bcb23e5666fc2dccb79c7133e9eeb701847f67ae84fbde0a673c3fd3d109e0R508x_refsource_MISCRelease NotesThird Party Advisory
Source: [email protected]
https://github.com/ExpressionEngine/ExpressionEngine/releases/tag/6.0.3CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-20
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