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CVE-2024-6307

WordPress Core < 6.5.5 - Authenticated (Contributor+) Stored Cross-Site Scripting via HTML API

MEDIUM
6.4
CVSS Score
Published: June 25, 2024 at 11:09 AM UTC
Updated: June 17, 2026 at 08:17 AM UTC
1 product affected across 1 vendorWordPress

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Severity
MEDIUM6.4
Exploit prediction
EPSS 0.5%
SSVC
No known exploit

Description

WordPress Core is vulnerable to Stored Cross-Site Scripting via the HTML API in various versions prior to 6.5.5 due to insufficient input sanitization and output escaping on URLs. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

WordPress· WordPressdrupal
60%
5.9 ≤ v ≤ 5.9.96.0 ≤ v ≤ 6.0.86.1 ≤ v ≤ 6.1.66.2 ≤ v ≤ 6.2.56.3 ≤ v ≤ 6.3.46.4 ≤ v ≤ 6.4.46.5 ≤ v ≤ 6.5.45.96.06.16.26.36.46.5

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (4)

Source: [email protected]
https://core.trac.wordpress.org/changeset/58472
Source: [email protected]
https://core.trac.wordpress.org/changeset/58473
Source: [email protected]
https://wordpress.org/news/2024/06/wordpress-6-5-5/
Source: [email protected]
https://www.wordfence.com/threat-intel/vulnerabilities/id/bc0d36f8-6569-49a1-b722-5cf57c4bb32a?source=cve

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.4MEDIUMWordfence
Vector?

Quick Info

StatusDEFERRED

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