The Easy Custom CSS plugin by a.ankit contains a CSRF vulnerability that enables stored XSS attacks. This issue affects all versions up to 1.0. The vulnerability allows attackers to trick authenticated users into submitting unauthorized requests, which can result in malicious scripts being stored and executed in the context of the application. The CVSS 3.1 score of 7.1 indicates a high severity with network attack vector, low attack complexity, no privileges required, user interaction required, and impacts on confidentiality, integrity, and availability.

Successful exploitation of this vulnerability can lead to stored XSS, which may allow attackers to execute arbitrary scripts in the context of affected users, potentially leading to data theft, session hijacking, or other malicious actions. The CSRF aspect means attackers can induce authenticated users to perform unintended actions without their consent. The combined impact affects confidentiality, integrity, and availability to a limited extent.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should consider disabling or removing the Easy Custom CSS plugin if feasible. Additionally, applying standard CSRF protections and input validation may help mitigate risk, but these are not confirmed as effective for this specific vulnerability without vendor guidance.