CVE-2022-0689Network attack vector

Unauthorized discounts via reusable single-use coupons

Published Feb 19, 2022 · Updated Aug 2, 2024

Business logic error in Microweber before 1.2.11 allows remote attackers to reuse a single-use coupon during checkout. CartManager retains coupon data in the session without revalidating it, while CheckoutManager records the discount without checking whether the coupon remains valid. No account or user interaction is required; a configured one-time coupon and shop checkout are needed to obtain repeated unauthorized discounts.

CVSS severity5.3
Medium
EPSS probability1.05%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Business logic error in Microweber before 1.2.11 allows remote attackers to reuse a single-use coupon during checkout. CartManager retains coupon data in the session without revalidating it, while CheckoutManager records the discount without checking whether the coupon remains valid. No account or user interaction is required; a configured one-time coupon and shop checkout are needed to obtain repeated unauthorized discounts.

The record

CVE
CVE-2022-0689
Published
Feb 19, 2022
Updated
Aug 2, 2024
Vendor
Microweber
Product
Microweber
Classifications
CWE-840, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 19, 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 privilegesunauthenticated

What is affected?

Microweber · Microweberversion=unspecified <1.2.11

Published CVSS scores

5.3NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
5.3huntr.devCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
5.0NIST NVDAV:N/AC:L/Au:N/C:N/I:P/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-840Business Logic Errors
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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