CVE-2021-36123Network attack vector

Authenticated file disclosure via unrestricted textFile path

Published Jul 13, 2021 · Updated Aug 4, 2024

Local file inclusion in The Echo Group ShareCare 8.15.5 allows remote authenticated users to read arbitrary server and UNC-accessible files. General/TextReader/TextReader.cfm accepts save or view actions and uses the textFile value as a full path without validation, sanitization, or restriction. A valid ShareCare session is required; successful access discloses files readable by the server, including files reached through UNC paths, without reported integrity or availability effects.

CVSS severity6.5
Medium
EPSS probability0.77%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Local file inclusion in The Echo Group ShareCare 8.15.5 allows remote authenticated users to read arbitrary server and UNC-accessible files. General/TextReader/TextReader.cfm accepts save or view actions and uses the textFile value as a full path without validation, sanitization, or restriction. A valid ShareCare session is required; successful access discloses files readable by the server, including files reached through UNC paths, without reported integrity or availability effects.

The record

CVE
CVE-2021-36123
Published
Jul 13, 2021
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
T1005
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 13, 2021CVE 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 privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
4.0NIST NVDAV:N/AC:L/Au:S/C:P/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1005Data from Local System

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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