The vulnerability CVE-2024-11895 affects the 'Online Payments – Get Paid with PayPal, Square & Stripe' WordPress plugin through stored cross-site scripting caused by improper neutralization of input in shortcode attributes. Authenticated users with contributor or higher privileges can inject arbitrary JavaScript into pages via plugin shortcodes due to lack of proper input sanitization and output escaping. This can lead to script execution in the context of users visiting the compromised pages. The issue is present in all versions up to and including 3.20.0. The CVSS 3.1 base score is 6.4, reflecting network attack vector, low attack complexity, required privileges at the contributor level, no user interaction, and impacts on confidentiality and integrity with no availability impact. No patch or official vendor advisory is currently available, and no exploits are known in the wild.

An attacker with contributor-level or higher access can inject persistent malicious scripts into pages via plugin shortcodes. These scripts execute in the browsers of users who visit the infected pages, potentially compromising user sessions or data confidentiality and integrity. The vulnerability does not affect availability. The medium CVSS score (6.4) reflects moderate risk due to required privileges and the potential impact on confidentiality and integrity.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict contributor-level access to trusted users only and consider disabling or removing the vulnerable plugin to prevent exploitation. Monitor official vcita communications for updates and apply any official patches promptly once released.