CVE-2026-52203 Details
Description
An issue in MCMS v.6.1.1 allows a remote attacker to obtain sensitive information via the source parameter.
A sensitive information disclosure vulnerability exists in MCMS version 6.1.1. This issue allows remote attackers to access confidential data by exploiting the source parameter. The vulnerability can be triggered by sending a POST request to the editor.do endpoint, including the action parameter set to 'catchimage' and the source parameter pointing to a URL containing the desired information, such as a text file with a flag.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Jul 17, 2026CISA-ADP
Assessed Jul 20, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://gist.github.com/this1slwl/1bfb6996ca7edf6f5d15b5ebc181f337 | [email protected] | Exploit |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-200 | Exposure of Sensitive Information to an Unauthorized Actor | CISA-ADP |
Affected Products
| Product | Versions |
|---|---|
| MCMS | 6.1.1 (semver) |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 20, 2026 | CVE Modified | CISA-ADP |
| Jul 17, 2026 | New CVE Received | [email protected] |