CVE-2024-50653Public exploitNetwork attack vector

Unlimited coupon claims via repeated authenticated requests

Published Nov 15, 2024 · Updated Mar 13, 2025

Incorrect access control in CRMEB 5.4.0 and earlier allows remote authenticated users to claim unlimited coupons through repeated requests. The POST /api/coupon/receive path relies on a front-end one-claim restriction and processes repeated couponId submissions without enforcing that limit server-side. A valid bearer session and an available coupon are required; successful exploitation changes only the user's coupon holdings.

CVSS severity7.5
High
EPSS probability0.53%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect access control in CRMEB 5.4.0 and earlier allows remote authenticated users to claim unlimited coupons through repeated requests. The POST /api/coupon/receive path relies on a front-end one-claim restriction and processes repeated couponId submissions without enforcing that limit server-side. A valid bearer session and an available coupon are required; successful exploitation changes only the user's coupon holdings.

The record

CVE
CVE-2024-50653
Published
Nov 15, 2024
Updated
Mar 13, 2025
Vendor
CRMEB
Product
CRMEB
Classifications
CWE-284, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 15, 2024CVE publishedPublication date reported by the CVE source.
  2. Mar 13, 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?

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

  1. Affected versionversion=0 <=5.4.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

CRMEB · CRMEBversion=0 <=5.4.0

Published CVSS scores

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

Weakness, pattern, technique

CWE-284Improper Access Control
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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