CVE-2021-27190Public exploitNetwork attack vector

Stored XSS via unneutralized address output

Published Feb 12, 2021 · Updated Aug 3, 2024

Stored XSS in PEEL Shopping 9.3.0 and 9.4.0 allows remote authenticated users to execute JavaScript via a crafted address. The account-credentials handler at utilisateurs/change_params.php stores the Address value and echoes it into JavaScript in an HTML response without neutralizing a polyglot payload. Execution occurs when the stored address is displayed or edited in a browser, allowing session-cookie theft or redirection within the affected session.

CVSS severity5.4
Medium
EPSS probability1.62%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in PEEL Shopping 9.3.0 and 9.4.0 allows remote authenticated users to execute JavaScript via a crafted address. The account-credentials handler at utilisateurs/change_params.php stores the Address value and echoes it into JavaScript in an HTML response without neutralizing a polyglot payload. Execution occurs when the stored address is displayed or edited in a browser, allowing session-cookie theft or redirection within the affected session.

The record

CVE
CVE-2021-27190
Published
Feb 12, 2021
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-79, T1203
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 12, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

3.5NIST NVDAV:N/AC:M/Au:S/C:N/I:P/A:N
5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/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
Privilegesauthenticated
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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