In NGINX Controller 3.0.0-3.4.0, recovery code required to change a user's password is transmitted and stored in the database in plain text…

published 2020-07-01 6y ago modified 2026-06-17 4mo ago also EUVD-2020-27053

cvss: 7.8; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.2%; EPSS 0.2% chance of exploitation in 30 days, percentile 8%
public exploits: 0; none known

In NGINX Controller 3.0.0-3.4.0, recovery code required to change a user's password is transmitted and stored in the database in plain text, which allows an attacker who can intercept the database connection or have read access to the database, to request a password reset using the email address of another registered user then retrieve the recovery code.

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Exploit prediction

0.19% chance of exploitation in the next 30 days, higher than 8% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
NVD	3.1	7.8	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	4.6	AV:L/AC:L/Au:N/C:P/I:P/A:P

Affected products

n/a NGINX Controller

Classification

Weakness

CWE-312 Cleartext Storage of Sensitive Information
CWE-319 Cleartext Transmission of Sensitive Information
CWE-522 Insufficiently Protected Credentials

References

support.f5.com /csp/article/K25434422
vendor-advisory

Sources

CVE List CVE-2020-5899
NVD CVE-2020-5899

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