CVE-2026-25313: 
WordPress vulnerability analysis and mitigation

CVE-2026-25313 is a Missing Authorization (Broken Access Control) vulnerability in the WordPress FluentForm plugin by Shahjahan Jewel. It affects FluentForm versions up to and including 6.1.14, allowing authenticated attackers with low privileges (Subscriber level) to exploit incorrectly configured access control security levels. The vulnerability was reported on December 26, 2025, and published on January 25, 2026, with a patched version (6.1.15) released shortly after. It carries a CVSS v3.1 base score of 4.3 (Medium) (Patchstack, Feedly).

The root cause is classified as CWE-862 (Missing Authorization), where certain plugin functions lack proper authorization or nonce token checks, allowing lower-privileged users to perform actions intended for higher-privileged roles. The attack vector is network-based, requires low privileges (e.g., a Subscriber-level WordPress account), and no user interaction. An attacker can send crafted requests to vulnerable plugin endpoints that fail to verify whether the requesting user has sufficient permissions to execute the targeted action (Patchstack, Feedly).

Successful exploitation results in a low integrity impact — authenticated low-privileged users can perform unauthorized actions within the FluentForm plugin that should be restricted to higher-privileged roles. There is no direct confidentiality or availability impact based on the CVSS scoring. The practical risk includes unauthorized modification of form settings or data, though the overall severity is considered low and exploitation is assessed as unlikely to have a significant impact on most sites (Patchstack).

The vulnerability requires an authenticated attacker with at least Subscriber-level access to a WordPress site running the affected plugin. The EPSS score is approximately 0.017% (0.000170), indicating a very low probability of exploitation in the wild. There is no evidence of active in-the-wild exploitation, no known public proof-of-concept exploit code, and the vulnerability is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog. Patchstack notes that vulnerabilities of this class can be used in mass-exploit campaigns targeting WordPress sites at scale, though this specific issue is rated low priority (Patchstack, Feedly).

The vendor has released FluentForm version 6.1.15, which patches this vulnerability. Site administrators should update the FluentForm plugin to version 6.1.15 or later immediately. If an immediate update is not possible, consider restricting Subscriber-level user registration or temporarily deactivating the plugin until the update can be applied. Patchstack users can enable auto-update for vulnerable plugins as an additional safeguard (Patchstack).