CVE-2020-37115Public exploitNetwork attack vector

Credential disclosure via plaintext user records

Published Feb 3, 2026 · Updated Feb 3, 2026

Plaintext password storage in GUnet Open eClass 1.7.3 allows remote authenticated users to read every registered user's credentials. The modules/admin/listusers.php interface retrieves and displays stored usernames and unencrypted passwords instead of protected password values. Administrative access is required, and disclosure is limited to the application's registered-user credentials.

CVSS severity7.1
High
EPSS probability0.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Plaintext password storage in GUnet Open eClass 1.7.3 allows remote authenticated users to read every registered user's credentials. The modules/admin/listusers.php interface retrieves and displays stored usernames and unencrypted passwords instead of protected password values. Administrative access is required, and disclosure is limited to the application's registered-user credentials.

The record

CVE
CVE-2020-37115
Published
Feb 3, 2026
Updated
Feb 3, 2026
Vendor
GUnet
Product
Open eClass
Classifications
CWE-256, T1555
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Feb 3, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 3, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.7.3 (2007)

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

GUnet · Open eClassversion=1.7.3 (2007)

Published CVSS scores

6.5VulnCheckCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
7.1VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
4.9NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/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.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-256Plaintext Storage of a Password
T1555Credentials from Password Stores

Public exploit references

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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