CVE-2025-52921
CRITICALDescription
In Innoshop through 0.4.1, an authenticated attacker could exploit the File Manager functions in the admin panel to achieve code execution on the server, by uploading a crafted file and then renaming it to have a .php extension by using the Rename Function. This bypasses the initial check that uploaded files are image files. The application relies on frontend checks to restrict the administrator from changing the extension of uploaded files to .php. This restriction is easily bypassed with any proxy tool (e.g., BurpSuite). Once the attacker renames the file, and gives it the .php extension, a GET request can be used to trigger the execution of code on the server.
How to fix
No published remediation has been found for this vulnerability's affected products yet.
Mitigation guidance may be in the linked vendor advisories in the References section below.
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CVSS v3 Vector
Exploitability
Impact
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L
Exploit Intelligence
Low risk: more likely to be exploited than 39% of all known CVEs.
References
Related Vulnerabilities
Other CWE-420 vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2023-20198 | Critical | 10.0 | 100% | KEV | Fix |
| CVE-2025-54309 | Critical | 9.0 | 94% | KEV | Fix |
| CVE-2024-10081 | Critical | 10.0 | 39% | - | Fix |
| CVE-2025-13315 | Critical | 9.8 | 33% | - | - |
| CVE-2024-6242 | Unscored | - | 9.2% | - | - |
| CVE-2025-53967 | High | 8.0 | 7.4% | - | - |
Common questions
How do I fix CVE-2025-52921?
No published fix for CVE-2025-52921 has been found yet. Check the linked vendor advisories for guidance as it becomes available.
Is CVE-2025-52921 being actively exploited?
Not that we know of. CVE-2025-52921 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.48% is the estimated probability that it will be exploited in the next 30 days. That is higher than 39% of all scored CVEs.
How severe is CVE-2025-52921?
CVE-2025-52921 has a CVSS v3 base score of 9.9, rated critical. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-06-23.