CVE-2021-4379Public exploitNetwork attack vector

Product price manipulation via unchecked CSV import

Published Jun 7, 2023 · Updated Apr 8, 2026

Missing authorization in VillaTheme CURCY 2.1.17 and earlier allows remote authenticated users to change WooCommerce product prices. The wmc_bulk_fixed_price AJAX hook invokes import_csv(), which accepts an uploaded CSV and writes price metadata without a capability check or security nonce. Subscriber-level access is sufficient, and crafted product IDs and currency values can overwrite fixed prices for one or multiple products.

CVSS severity6.5
Medium
EPSS probability0.80%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authorization in VillaTheme CURCY 2.1.17 and earlier allows remote authenticated users to change WooCommerce product prices. The wmc_bulk_fixed_price AJAX hook invokes import_csv(), which accepts an uploaded CSV and writes price metadata without a capability check or security nonce. Subscriber-level access is sufficient, and crafted product IDs and currency values can overwrite fixed prices for one or multiple products.

The record

CVE
CVE-2021-4379
Published
Jun 7, 2023
Updated
Apr 8, 2026
Vendor
VillaTheme
Product
CURCY – WooCommerce Multi Currency – Currency Switcher
Classifications
CWE-862, T1565.001
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 7, 2023CVE publishedPublication date reported by the CVE source.
  2. Apr 8, 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 <=2.1.17

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

VillaTheme · CURCY – WooCommerce Multi Currency – Currency Switcherversion=0 <=2.1.17

Published CVSS scores

6.5WordfenceCVSS:3.1/AV:N/AC:L/PR:L/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-862Missing Authorization
T1565.001Stored Data Manipulation

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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