Jthemes — Vulnerabilities & Security Advisories 11

Jthemes develops WordPress themes and website templates, primarily serving small businesses and personal websites. Historically, their products have frequently contained cross-site scripting (XSS) vulnerabilities, remote code execution (RCE) flaws, and privilege escalation issues, often stemming from insufficient input validation and improper access controls. While no major public security incidents have been documented, the 10 CVEs attributed to their products highlight consistent security shortcomings. These vulnerabilities typically allow attackers to execute arbitrary code, steal session cookies, or gain elevated access, posing significant risks to unpatched installations. Security researchers have noted that many issues remain present across multiple theme versions, indicating systemic weaknesses in their development and testing processes.