CVE-2025-12851
Published: 05 December 2025
Summary
CVE-2025-12851 is a high-severity PHP Remote File Inclusion (CWE-98) vulnerability in Wordpress (inferred from references). Its CVSS base score is 8.1 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 47.3th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
The strongest mitigations our analysis identified are NIST 800-53 SI-10 (Information Input Validation) and SI-2 (Flaw Remediation).
Deeper analysis
CVE-2025-12851 is a Local File Inclusion (LFI) vulnerability in the My Auctions Allegro plugin for WordPress, affecting all versions up to and including 3.6.32. The issue arises from improper handling of the 'controller' parameter, which allows attackers to include and execute arbitrary files on the server, potentially leading to the execution of PHP code within those files. Published on 2025-12-05, it is rated with a CVSS v3.1 base score of 8.1 (AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H) and maps to CWE-98: Improper Control of Filename for Include/Require Statement in PHP Program.
Unauthenticated attackers can exploit this vulnerability remotely over the network, though it requires high attack complexity and no user interaction. Successful exploitation enables the inclusion of arbitrary server files, allowing PHP code execution to bypass access controls, exfiltrate sensitive data, or achieve remote code execution in scenarios where "safe" file types like images can be uploaded and subsequently included.
Mitigation is addressed in the plugin patch via changeset 3402268, available at https://plugins.trac.wordpress.org/changeset/3402268/my-auctions-allegro-free-edition. Further details on the vulnerability and remediation are provided in the Wordfence threat intelligence advisory at https://www.wordfence.com/threat-intel/vulnerabilities/id/202a8493-6df0-4a5e-b6bf-099219830e01?source=cve. Security practitioners should update the plugin immediately and review server configurations for file upload restrictions.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-201402
Vulnerability details
The My auctions allegro plugin for WordPress is vulnerable to Local File Inclusion in all versions up to, and including, 3.6.32 via the 'controller' parameter. This makes it possible for unauthenticated attackers to include and execute arbitrary files on the…
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server, allowing the execution of any PHP code in those files. This can be used to bypass access controls, obtain sensitive data, or achieve code execution in cases where images and other “safe” file types can be uploaded and included.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
LFI vulnerability in public-facing WordPress plugin directly enables exploitation of public-facing application for remote code execution and file inclusion.
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Requires validation and filtering of the 'controller' parameter to block improper filename control leading to local file inclusion and arbitrary PHP execution.
Mandates timely patching of the My Auctions Allegro plugin vulnerability as detailed in the changeset 3402268 to remediate the LFI flaw.
Restricts the 'controller' parameter inputs to organization-defined safe values, preventing traversal to arbitrary server files.