CVE-2026-65697 (GCVE-0-2026-65697)
Vulnerability from cvelistv5 – Published: 2026-07-23 16:29 – Updated: 2026-07-23 18:12 X_Open Source Unsupported When Assigned
VLAI
EPSS
VEX
Title
Fathom Lite 1.3.1 Stored XSS via /collect Endpoint
Summary
Fathom Lite through 1.3.1 contains a stored cross-site scripting vulnerability in the analytics collection endpoint that allows unauthenticated attackers to inject a javascript: URI into the Top Pages dashboard by supplying a crafted hostname and pathname to the unauthenticated /collect endpoint. The parseHostname and parsePathname functions perform no URI scheme validation, allowing a javascript: hostname combined with a newline-prefixed pathname to be stored and later rendered as an anchor href in the authenticated dashboard without sanitization, enabling session hijacking and full account takeover when an operator clicks the poisoned entry.
Severity
6.1 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-23 18:12 UTC
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
VulnCheck
CNA
References
2 references
| URL | Tags |
|---|---|
| https://github.com/geo-chen/oss/blob/main/fathom.md | technical-descriptionexploit |
| https://www.vulncheck.com/advisories/fathom-lite-… | third-party-advisory |
Date Public
2026-07-17 00:00
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Browse all ATT&CK techniques and the vulnerabilities related to each.
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