CVE-2026-16538Public exploitNetwork attack vector

Wallet balance inflation via pre-discount top-up crediting

Published Aug 12, 2026 · Updated Aug 12, 2026

Improper access control in TeraWallet before 1.6.10 allows remote authenticated users to inflate wallet credit through discounted top-ups. The top-up completion path credits the product's pre-discount line subtotal instead of the amount retained after coupons, tax, and shipping. A customer can repeatedly apply any eligible store coupon and spend the excess credit; stores without coupons usable on top-ups are not exposed.

CVSS severity9.1
Critical
EPSS probability0.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in TeraWallet before 1.6.10 allows remote authenticated users to inflate wallet credit through discounted top-ups. The top-up completion path credits the product's pre-discount line subtotal instead of the amount retained after coupons, tax, and shipping. A customer can repeatedly apply any eligible store coupon and spend the excess credit; stores without coupons usable on top-ups are not exposed.

The record

CVE
CVE-2026-16538
Published
Aug 12, 2026
Updated
Aug 12, 2026
Vendor
StandaloneTech
Product
TeraWallet
Classifications
CWE-284, T1657
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 12, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 12, 2026Record 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 <1.6.10

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

StandaloneTech · TeraWalletversion=0 <1.6.10

Published CVSS scores

9.1CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/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.

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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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-284Improper Access Control
T1657Financial Theft

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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