CVE-2021-39314Network attack vector

Reflected XSS via unescaped dataid parameter

Published Dec 14, 2021 · Updated Feb 13, 2025

Reflected XSS in Ecomerciar WooCommerce EnvioPack 1.2 and earlier allows remote attackers to run scripts through the dataid parameter. The code at includes/functions.php line 605 reflects dataid into generated page output without neutralizing attacker-controlled markup. Exploitation requires a victim to interact with a crafted request, and the script runs in that victim's browser within the affected site's origin.

CVSS severity6.1
Medium
EPSS probability0.76%
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 Ecomerciar WooCommerce EnvioPack 1.2 and earlier allows remote attackers to run scripts through the dataid parameter. The code at includes/functions.php line 605 reflects dataid into generated page output without neutralizing attacker-controlled markup. Exploitation requires a victim to interact with a crafted request, and the script runs in that victim's browser within the affected site's origin.

The record

CVE
CVE-2021-39314
Published
Dec 14, 2021
Updated
Feb 13, 2025
Vendor
Ecomerciar
Product
WooCommerce EnvioPack
Classifications
CWE-79, T1204
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 14, 2021CVE publishedPublication date reported by the CVE source.
  2. Feb 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=1.2 <=1.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Ecomerciar · WooCommerce EnvioPackversion=1.2 <=1.2

Published CVSS scores

4.3NVDAV:N/AC:M/Au:N/C:N/I:P/A:N
6.1WordfenceCVSS: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 exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1204User Execution

Public exploit references

No public exploit references are available in this record.

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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