The pey22 T&P Gallery Slider plugin versions up to 1.2 suffer from a Stored Cross-site Scripting vulnerability due to improper input neutralization during web page generation. This allows attackers to inject malicious scripts that persist and execute when other users view the affected content. The CVSS 3.1 base score is 7.1 (high), reflecting network attack vector, low attack complexity, no privileges required, user interaction required, scope changed, and impacts on confidentiality, integrity, and availability at low levels. No patch or official remediation guidance is currently available, and the product is not a cloud service.

Successful exploitation of this vulnerability can allow an attacker to execute arbitrary scripts in the context of other users, potentially leading to theft of sensitive information, session hijacking, or other malicious actions impacting confidentiality, integrity, and availability at a low level. The scope of impact extends beyond the vulnerable component due to the scope change indicated in the CVSS vector.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, users should consider disabling or removing the vulnerable plugin to mitigate risk. No official patch or temporary fix has been published as of now.