CVE-2023-39655

Name: CVE-2023-39655
Creator: NVD / NIST
Published: 2024-01-03T13:15:08.467+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.6/10EPSS 0.52%

Last modified Jun 17, 2026

CVE-2023-39655 is a critical-severity vulnerability rated 9.6/10 on the CVSS scale. A host header injection vulnerability exists in the NPM package @perfood/couch-auth versions <= 0.20.0. By sending a specially crafted host header in the forgot password request, it is possible to send password reset links to users which, once clicked, lead to an attacker-controlled server and thus leak the password reset token. EPSS estimates a 0.52% chance of exploitation in the next 30 days.

Description

A host header injection vulnerability exists in the NPM package @perfood/couch-auth versions <= 0.20.0. By sending a specially crafted host header in the forgot password request, it is possible to send password reset links to users which, once clicked, lead to an attacker-controlled server and thus leak the password reset token. This may allow an attacker to reset other users' passwords and take over their accounts.

Metrics

CVSS 3.1

9.6/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

EPSS Probability

0.52%

40.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Perfood	Couchauth	<= 0.20.0

References

https://github.com/dub-flow/vulnerability-research/tree/main/CVE-2023-39655Third Party Advisory
https://www.npmjs.com/package/%40perfood/couch-authProduct
https://github.com/dub-flow/vulnerability-research/tree/main/CVE-2023-39655Third Party Advisory
https://www.npmjs.com/package/%40perfood/couch-authProduct

Timeline

Published: Jan 3, 2024
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-39655?

How severe is CVE-2023-39655?

CVE-2023-39655 has a CVSS score of 9.6/10 (CRITICAL severity). The EPSS model estimates a 0.52% probability of exploitation in the next 30 days.

How do I fix CVE-2023-39655?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-39655?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST