CVE-2025-43933

CRITICALNVD 9.89.8—

9.8

fblog through 983bede allows account takeover via the password reset feature because SERVER_NAME is not configured and thus a reset depends on the Host HTTP header.

CVSS v3: 9.8
EG Score: 9.8(medium)
EPSS: 61.9%
KEV: Not listed

Published

July 7, 2025

Last Modified

April 15, 2026

Advisory Details (2)

Auto-updated May 5, 2026

No patch confirmed yet.

generic

[SECURITY] Host Header Injection Leading to Account Takeover (CVE-2025-43933) · Issue #5 · ghost123gg/fblog · GitHub

https://github.com/ghost123gg/fblog/issues/5

generic

fblog/app/templates/auth/email/resetPassword.html at 983bedec9f837a54ab2dfd358a9cb45504a2e709 · ghost123gg/fblog · GitHub

https://github.com/ghost123gg/fblog/blob/983bedec9f837a54ab2dfd358a9cb45504a2e709/app/templates/auth/email/resetPassword.html#L1-L8

Weakness Classification(1)

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

CWE-472

Data Freshness Timeline

(refreshed 20× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

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Frequently asked(5)

What is CVE-2025-43933?

CVE-2025-43933 is a critical vulnerability published on July 7, 2025. fblog through 983bede allows account takeover via the password reset feature because SERVER_NAME is not configured and thus a reset depends on the Host HTTP header.

When was CVE-2025-43933 disclosed?

CVE-2025-43933 was first published in the National Vulnerability Database on July 7, 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-2025-43933 actively exploited?

CVE-2025-43933 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 61.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2025-43933?

CVE-2025-43933 has a CVSS v3 base score of 9.8 (NVD).

How do I remediate CVE-2025-43933?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-43933, 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.

Dependency Blast Radius

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