CVE-2020-8889Public exploitNetwork attack vector

Unauthenticated data disclosure via blank-password comparison

Published Mar 28, 2023 · Updated Feb 19, 2025

Authentication bypass in the ShipStation.com plugin 1.0 for CS-Cart allows remote attackers to read customer and order data via export requests. In shipstation.php, a misspelled password registry key returns NULL, while the access test rejects requests only when both supplied credentials differ. An unauthenticated request with a blank password therefore reaches action=export and discloses customer and purchase records for a chosen date range.

CVSS severity7.5
High
EPSS probability1.00%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in the ShipStation.com plugin 1.0 for CS-Cart allows remote attackers to read customer and order data via export requests. In shipstation.php, a misspelled password registry key returns NULL, while the access test rejects requests only when both supplied credentials differ. An unauthenticated request with a blank password therefore reaches action=export and discloses customer and purchase records for a chosen date range.

The record

CVE
CVE-2020-8889
Published
Mar 28, 2023
Updated
Feb 19, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 28, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 19, 2025Record 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

7.5NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
7.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

T1190Exploit Public-Facing Application

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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