CVE-2026-1885 is a stored cross-site scripting vulnerability in the Slideshow Wp plugin for WordPress, affecting all versions up to 1.1. The issue stems from improper neutralization of input in the 'sswpid' attribute of the 'sswp-slide' shortcode, enabling authenticated users with contributor or higher privileges to inject arbitrary web scripts. These scripts execute in the context of any user viewing the compromised page, potentially leading to session hijacking or other script-based attacks. The vulnerability has a CVSS 3.1 base score of 6.4, reflecting network attack vector, low attack complexity, and privileges required at the contributor level.

An attacker with contributor-level access or higher can exploit this vulnerability to inject malicious scripts that execute in the browsers of users who view the affected pages. This can lead to information disclosure or session hijacking limited to the scope of the injected scripts. The vulnerability does not impact availability and requires authenticated access, reducing its overall risk but still posing a significant threat to site integrity and user security.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict contributor-level access to trusted users only and consider disabling or removing the Slideshow Wp plugin if possible. Monitor for updates from the vendor or plugin maintainer regarding patches or mitigations.