CVE-2021-47931
MediumCVSS 6.4Exploitation Probability (EPSS)
Low risk12th percentile - higher than 12% of all known CVEs
Summary
Exponent CMS 2.6 contains a stored XSS vulnerability that allows authenticated attackers to inject malicious scripts via the Title and Text Block parameters in the text editing endpoint. Attackers can inject iframe payloads with embedded SVG onload events to execute arbitrary JavaScript. The application also exposes database credentials in responses and lacks brute-force protection on authentication endpoints.
Risk Assessment
An attacker can steal administrator sessions, modify content, or steal database credentials, threatening system confidentiality and integrity.
Recommendation
It is recommended to update Exponent CMS to the latest version, implement input validation, and add brute-force protection.
Original NVD description (English source)
Exponent CMS 2.6 contains a stored cross-site scripting vulnerability that allows authenticated attackers to inject malicious scripts through the Title and Text Block parameters in the text editing endpoint. Attackers can inject iframe payloads with embedded SVG onload events to execute arbitrary JavaScript. The application also exposes database credentials in responses and lacks brute-force protection on authentication endpoints.