CVE-2026-39559: CWE-98 Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion') in codesupplyco Uppercase
Unauthenticated Local File Inclusion in Uppercase < 1.2.2 versions.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-39559) affects the Uppercase product by codesupplyco, specifically versions before 1.2.2. It is caused by improper control of filenames in PHP include/require statements, enabling unauthenticated Local File Inclusion (LFI). The CVSS v3.1 score is 8.1, indicating high impact with network attack vector, high attack complexity, no privileges required, no user interaction, and high impact on confidentiality, integrity, and availability. No patch or official remediation level has been published yet.
Potential Impact
Successful exploitation allows an unauthenticated attacker to include local files on the server, potentially leading to disclosure of sensitive information, code execution, or denial of service. The impact affects confidentiality, integrity, and availability of the affected system at a high level.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict access to vulnerable endpoints and consider applying web application firewall (WAF) rules to detect and block suspicious include/require requests related to this vulnerability.
CVE-2026-39559: CWE-98 Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion') in codesupplyco Uppercase
Description
Unauthenticated Local File Inclusion in Uppercase < 1.2.2 versions.
CVSS v3.1
Score 8.1high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-39559) affects the Uppercase product by codesupplyco, specifically versions before 1.2.2. It is caused by improper control of filenames in PHP include/require statements, enabling unauthenticated Local File Inclusion (LFI). The CVSS v3.1 score is 8.1, indicating high impact with network attack vector, high attack complexity, no privileges required, no user interaction, and high impact on confidentiality, integrity, and availability. No patch or official remediation level has been published yet.
Potential Impact
Successful exploitation allows an unauthenticated attacker to include local files on the server, potentially leading to disclosure of sensitive information, code execution, or denial of service. The impact affects confidentiality, integrity, and availability of the affected system at a high level.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict access to vulnerable endpoints and consider applying web application firewall (WAF) rules to detect and block suspicious include/require requests related to this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Patchstack
- Date Reserved
- 2026-04-07T10:48:26.893Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a32a89d0b89be6888635d36
Added to database: 6/17/2026, 2:01:01 PM
Last enriched: 6/17/2026, 2:30:05 PM
Last updated: 6/17/2026, 5:22:52 PM
Views: 3
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