CVE-2025-13847 is a stored cross-site scripting vulnerability in the PhotoFade WordPress plugin by davidangel, affecting all versions up to 0.2.1. The vulnerability is due to improper neutralization of input in the 'time' parameter, allowing authenticated users with Contributor or higher privileges to inject arbitrary web scripts. These scripts execute whenever a user accesses the injected page, potentially leading to session hijacking or other script-based attacks. The vulnerability has a CVSS 3.1 base score of 6.4, reflecting medium severity with network attack vector, low attack complexity, and requiring privileges but no user interaction.

An attacker with Contributor-level or higher access can store malicious scripts via the vulnerable 'time' parameter, which execute in the context of other users viewing the affected pages. This can lead to information disclosure or other impacts related to cross-site scripting. There is no indication of impact on availability. No known exploits have been reported in the wild.

No official patch or fix is currently available for this vulnerability. Users should monitor the vendor's advisory channels for updates. Until a fix is released, restrict Contributor-level access to trusted users only and consider disabling or removing the PhotoFade plugin if possible to mitigate risk.