CVE-2010-4536: n/a vulnerability

CVE-2010-4536: Multiple cross-site scripting (XSS) vulnerabilities in KSES, as used in WordPress before 3.0.4, allow remot...

Multiple cross-site scripting (XSS) vulnerabilities in KSES, as used in WordPress before 3.0.4, allow remote attackers to inject arbitrary web script or HTML via vectors related to (1) the & (ampersand) character, (2) the case of an attribute name, (3) a padded entity, and (4) an entity that is not in normalized form.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 7, 2024, 03:51 UTC (UTC+00:00)

Security readout for executives and security teams

WordPress before 3.0.4 had multiple XSS flaws in KSES, the HTML filtering component. A remote attacker could get script or HTML through specific entity and attribute-normalization edge cases. For leaders, the concern is older WordPress sites exposing users or administrators to browser-side compromise if untrusted content is accepted. Exposure is most likely on WordPress installations older than 3.0.4, especially sites that accept comments, posts, or other user-supplied HTML processed by KSES. The bundle does not identify other affected products beyond KSES as used in WordPress. Treat this as legacy technical debt with user-trust impact. It is not documented as actively exploited here, but any public WordPress site this old is far beyond support expectations and should be upgraded or removed promptly. Mitigation focus: Upgrade WordPress installations to 3.0.4 or later.; Apply relevant distribution packages where WordPress is managed by an OS vendor.; Identify and retire unsupported legacy WordPress instances..

Prepared: Jun 28, 2026, 01:17 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: Jan 3, 2011, 19:26 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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0CVSS vectors

0Timeline events

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1Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

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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