CVE-2021-47856Public exploitNetwork attack vector

Session compromise via reflected search input

Published Feb 1, 2026 · Updated Feb 1, 2026

Reflected XSS in NetArt Media Easy Cart 2021 allows remote attackers to execute script in a visitor's browser through a search request. The index search module places the POST keyword_search value into its results page without neutralizing executable HTML, causing the browser to run injected script in the site's origin. Exploitation requires a visitor's browser to submit an attacker-crafted request and render the results, exposing session data and permitting content manipulation.

CVSS severity6.4
Medium
EPSS probability0.32%
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 NetArt Media Easy Cart 2021 allows remote attackers to execute script in a visitor's browser through a search request. The index search module places the POST keyword_search value into its results page without neutralizing executable HTML, causing the browser to run injected script in the site's origin. Exploitation requires a visitor's browser to submit an attacker-crafted request and render the results, exposing session data and permitting content manipulation.

The record

CVE
CVE-2021-47856
Published
Feb 1, 2026
Updated
Feb 1, 2026
Vendor
NetArt Media
Product
Easy Cart
Classifications
CWE-79, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 1, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 1, 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=2021

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

NetArt Media · Easy Cartversion=2021

Published CVSS scores

6.4VulnCheckCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
5.1VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA: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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1203Exploitation for Client Execution

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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