CVE-2025-26978 is an SQL Injection vulnerability in the FS Poster plugin by fs-code, affecting versions up to 6.5.8. The issue stems from improper neutralization of special elements in SQL commands, which could allow an attacker with low privileges to execute crafted SQL queries. The CVSS v3.1 base score is 8.5, reflecting network attack vector, low attack complexity, low privileges required, no user interaction, and a scope change with high confidentiality impact and low availability impact. No patch or vendor advisory is currently available, and no known exploits have been reported.

Successful exploitation could allow an attacker with low privileges to execute unauthorized SQL commands, potentially leading to disclosure of sensitive information (high confidentiality impact) and partial denial of service (low availability impact). Integrity impact is not indicated. The vulnerability could be exploited remotely without user interaction.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, monitor vendor communications for updates. No specific mitigations or workarounds are documented at this time.