CVE-2020-25566Public exploitNetwork attack vector

Unauthenticated account takeover via password-reset endpoint

Published Aug 11, 2021 · Updated Aug 4, 2024

Missing authentication in SapphireIMS 5.0 allows remote attackers to take over any account through the Save_Password endpoint. The endpoint processes an unauthenticated POST request and writes the supplied Base64-encoded new password to the account named by the username parameter. No JSESSIONID or existing account credential is required, and successful exploitation grants control of the targeted account.

CVSS severity9.8
Critical
EPSS probability1.56%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authentication in SapphireIMS 5.0 allows remote attackers to take over any account through the Save_Password endpoint. The endpoint processes an unauthenticated POST request and writes the supplied Base64-encoded new password to the account named by the username parameter. No JSESSIONID or existing account credential is required, and successful exploitation grants control of the targeted account.

The record

CVE
CVE-2020-25566
Published
Aug 11, 2021
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-306, T1098
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 11, 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 privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.5NIST NVDAV:N/AC:L/Au:N/C:P/I:P/A:P

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-306Missing Authentication for Critical Function
T1098Account Manipulation

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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