CVE-2023-3671Public exploitNetwork attack vector

Administrator-session script execution via unescaped parameters

Published Aug 7, 2023 · Updated May 5, 2025

Reflected XSS in MultiParcels Shipping For WooCommerce before 1.15.4 allows remote attackers to run scripts in an administrator's browser. Multiple request parameters are returned in an administrative page without sanitization or context-appropriate output escaping. Exploitation requires a high-privilege user, such as an administrator, to follow a crafted request; the injected script then executes with that user's WordPress session privileges.

CVSS severity6.1
Medium
EPSS probability0.46%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reflected XSS in MultiParcels Shipping For WooCommerce before 1.15.4 allows remote attackers to run scripts in an administrator's browser. Multiple request parameters are returned in an administrative page without sanitization or context-appropriate output escaping. Exploitation requires a high-privilege user, such as an administrator, to follow a crafted request; the injected script then executes with that user's WordPress session privileges.

The record

CVE
CVE-2023-3671
Published
Aug 7, 2023
Updated
May 5, 2025
Vendor
MultiParcels
Product
MultiParcels Shipping For WooCommerce
Classifications
CWE-79, T1204.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 7, 2023CVE publishedPublication date reported by the CVE source.
  2. May 5, 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 <1.15.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

MultiParcels · MultiParcels Shipping For WooCommerceversion=0 <1.15.4

Published CVSS scores

6.1CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Cross-Site Scripting (XSS)
T1204.001User Execution: Malicious Link

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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