CVE-2021-20148Public exploitNetwork attack vector

Cross-domain password-policy disclosure via predictable web files

Published Jan 3, 2022 · Updated Aug 3, 2024

Information disclosure in Zoho Corporation ManageEngine ADSelfService Plus before build 6116 allows remote authenticated users to read password policies. The server writes each domain's policy beneath the html web root using a predictable uppercase, domain-derived filename. A user in one configured Windows domain can enumerate configured domains and request another domain's policy file, exposing its password rules.

CVSS severity4.3
Medium
EPSS probability1.12%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in Zoho Corporation ManageEngine ADSelfService Plus before build 6116 allows remote authenticated users to read password policies. The server writes each domain's policy beneath the html web root using a predictable uppercase, domain-derived filename. A user in one configured Windows domain can enumerate configured domains and request another domain's policy file, exposing its password rules.

The record

CVE
CVE-2021-20148
Published
Jan 3, 2022
Updated
Aug 3, 2024
Vendor
Zoho Corporation
Product
ManageEngine ADSelfService Plus
Classifications
CWE-552
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 3, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 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?

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

  1. Affected versionversion=< 6116

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Zoho Corporation · ManageEngine ADSelfService Plusversion=< 6116

Published CVSS scores

3.5NIST NVDAV:N/AC:M/Au:S/C:P/I:N/A:N
4.3NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
4.3TenableCVSS:3.1/AV:N/AC:L/PR:L/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.

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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 exploitPublished

Weakness, pattern, technique

CWE-552Files or Directories Accessible to External Parties

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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