XSS in Remyandrade Ai Font Matcher
CVE-2025-63708
Cross-Site Scripting (XSS) vulnerability exists in SourceCodester AI Font Matcher (nid=18425, 2025-10-10) that allows remote attackers to execute arbitrary JavaScript in victims' browsers. The vulnerability occurs in the webfonts API handling mechanism where font family names are not properly sanitized. An attacker can intercept fetch requests to the webfonts endpoint and inject malicious JavaScript payloads through font family names, resulting in session cookie theft, account hijacking, and unauthorized actions performed on behalf of authenticated users. The vulnerability can be exploited by injecting a fetch hook that returns controlled font data containing malicious scripts.
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.003 (17.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
Affected products
- Remyandrade Ai_font_matcher — versions 2025-10-10
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (Product)
- cve@mitre.org (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2025-63708?
- CVE-2025-63708 is a medium-severity vulnerability in Remyandrade Ai Font Matcher, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2025-11-17.
- How severe is CVE-2025-63708?
- Medium severity. CVSS v3 base score is 6.1 out of 10.
- Is CVE-2025-63708 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.