CVE-2022-0596Network attack vector

Free purchases via negative product quantities

Published Feb 15, 2022 · Updated Aug 2, 2024

Improper quantity validation in Microweber before 1.2.11 allows remote authenticated users to obtain products without paying full value. The shopping-cart quantity handling accepts negative product amounts and uses them when calculating the order total, allowing an attacker-controlled quantity to reduce the payable value. A customer account and an enabled online shop are required; the demonstrated consequence is unauthorized price manipulation, not code execution or service interruption.

CVSS severity4.3
Medium
EPSS probability0.62%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper quantity validation in Microweber before 1.2.11 allows remote authenticated users to obtain products without paying full value. The shopping-cart quantity handling accepts negative product amounts and uses them when calculating the order total, allowing an attacker-controlled quantity to reduce the payable value. A customer account and an enabled online shop are required; the demonstrated consequence is unauthorized price manipulation, not code execution or service interruption.

The record

CVE
CVE-2022-0596
Published
Feb 15, 2022
Updated
Aug 2, 2024
Vendor
Microweber
Product
Microweber
Classifications
CWE-1284, T1565.001
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 15, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 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=unspecified <1.2.11

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Microweber · Microweberversion=unspecified <1.2.11

Published CVSS scores

4.0NIST NVDAV:N/AC:L/Au:S/C:N/I:P/A:N
4.3NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
5.4huntr.devCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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

CWE-1284Improper Validation of Specified Quantity in Input
T1565.001Stored Data Manipulation

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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