CVE-2020-14423Network attack vector

Unauthorized password resets via predictable local secret

Published Jun 18, 2020 · Updated Aug 4, 2024

Insufficiently random values in Convos before 4.20 allow remote attackers to generate unauthorized password-reset and invitation links. The local_secret builder in Core/Settings.pm hashes the home path, user and group IDs, and process name, producing a predictable CONVOS_LOCAL_SECRET in Docker deployments. Attackers who derive that secret can reach recovery and invitation functions without an existing account, enabling password resets or unauthorized registration.

CVSS severity5.3
Medium
EPSS probability1.06%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Insufficiently random values in Convos before 4.20 allow remote attackers to generate unauthorized password-reset and invitation links. The local_secret builder in Core/Settings.pm hashes the home path, user and group IDs, and process name, producing a predictable CONVOS_LOCAL_SECRET in Docker deployments. Attackers who derive that secret can reach recovery and invitation functions without an existing account, enabling password resets or unauthorized registration.

The record

CVE
CVE-2020-14423
Published
Jun 18, 2020
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-330, T1078
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 18, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.0NIST NVDAV:N/AC:L/Au:N/C:P/I:N/A:N
5.3NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-330Use of Insufficiently Random Values
T1078Valid Accounts

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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