CVE-2009-4157: n/a vulnerability

CVE-2009-4157: Multiple cross-site scripting (XSS) vulnerabilities in index.php in the ProofReader (com_proofreader) compo...

Multiple cross-site scripting (XSS) vulnerabilities in index.php in the ProofReader (com_proofreader) component 1.0 RC9 and earlier for Joomla! allow remote attackers to inject arbitrary web script or HTML via the URI, which is not properly handled in (1) 404 or (2) error pages.

UnknownCVSS not scoredNot KEV-listedUpdatedSep 16, 2024, 20:42 UTC (UTC+00:00)

Security readout for executives and security teams

CVE-2009-4157 is an old cross-site scripting issue in the Joomla! ProofReader component. A malicious link or request could cause script or HTML to appear on 404 or error pages. Business impact depends on whether the vulnerable component is still installed on public sites. Exposure is likely limited to Joomla! sites that still run ProofReader com_proofreader 1.0 RC9 or earlier, especially internet-facing sites. Organizations not using this component are not affected based on the provided sources. Prioritize if legacy Joomla! sites remain internet-facing or process authenticated user sessions. This is not known active exploitation from the provided sources, but unsupported old extensions can create avoidable web risk. Mitigation focus: Inventory Joomla! sites for the ProofReader com_proofreader component.; If present, identify whether version is 1.0 RC9 or earlier.; Check vendor or project guidance for an update or supported replacement..

Prepared: Jun 28, 2026, 11:17 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Dec 2, 2009, 17:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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0CVSS vectors

0Timeline events

0ADP providers

1Source links

CVSS and timeline data

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Source materials

CVE List V5 sourceCVE List V5

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

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