What is the CVSS score of CVE-2021-47897?

CVE-2021-47897 has a CVSS 3.1 base score of 7.2 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N. EPSS exploitation probability: 0.1%.

Which versions of PHP are affected by CVE-2021-47897?

CVE-2021-47897 is a cross-site scripting (XSS) vulnerability in the change_params.php script that allows attackers to inject malicious code through the address parameter.

Is there a public PoC exploit available for CVE-2021-47897?

Yes, a public proof-of-concept exploit is available for CVE-2021-47897. Prioritise patching immediately. EPSS: 0.1%.

How to fix or mitigate CVE-2021-47897?

Within 24 hours: Disable or restrict access to the change_params.php script until mitigation is in place; audit application logs for exploitation attempts. Within 7 days: Implement Web Application Firewall (WAF) rules to sanitize the address parameter and block script injection patterns; validate all input fields for XSS vectors. Within 30 days: Coordinate with vendor on patch timeline; conduct security assessment of all similar input parameters in the application; deploy patched version once available.

PHP CVE-2021-47897

HIGH

Cross-site Scripting (XSS) (CWE-79)

2026-01-23 disclosure@vulncheck.com

PHP XSS

7.2

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.2 HIGH

AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 21:54 vuln.today

PoC Detected

Jan 26, 2026 - 15:03 vuln.today

Public exploit code

CVE Published

Jan 23, 2026 - 17:16 nvd

HIGH 7.2

DescriptionCVE.org

PEEL Shopping 9.3.0 contains a stored cross-site scripting vulnerability in the address parameter of the change_params.php script. Attackers can inject malicious JavaScript payloads that execute when users interact with the address text box, potentially enabling client-side script execution.

AnalysisAI

address parameter of the change_params.php script. Attackers can inject malicious JavaScript payloads is affected by cross-site scripting (xss) (CVSS 7.2).

Technical ContextAI

This vulnerability (CWE-79: Cross-site Scripting (XSS)) exists in the address component. PEEL Shopping 9.3.0 contains a stored cross-site scripting vulnerability in the address parameter of the change_params.php script. Attackers can inject malicious JavaScript payloads that execute when users interact with the address text box, potentially enabling client-side script execution.

Affected ProductsAI

Product: address parameter of the change_params.php script. Attackers can inject malicious JavaScript payloads. Component: address.

RemediationAI

Monitor vendor advisories for a patch. Implement output encoding and Content Security Policy headers. Restrict network access to the affected service where possible.