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Fencer Intel
medium 4.3

CVE-2025-65717 json

An issue in Visual Studio Code Extensions Live Server v5.7.9 allows attackers to exfiltrate files via user interaction with a crafted HTML…

published 8mo ago modified 4mo ago also EUVD-2025-207801

cvss
4.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 50%
public exploits
0
none known

Summary

An issue in Visual Studio Code Extensions Live Server v5.7.9 allows attackers to exfiltrate files via user interaction with a crafted HTML page.

Is CVE-2025-65717 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
partial
Assessed
8mo ago

Exploit prediction

0.63% chance of exploitation in the next 30 days, higher than 50% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • ox.security https://www.ox.security/blog/cve-2025-65717-live-server-vscode-vulnerability/ referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CISA ADP 3.1 4.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
CNA 3.1 4.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

Classification

Weakness
  • CWE-601 URL Redirection to Untrusted Site
  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
  • CWE-79 Improper Neutralization of Input During Web Page Generation

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.