description: The YARPP plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'className' parameter in versions up to, and including, 5.30.3 due to insufficient input sanitization and output escaping. This makes it possible for contributor-level attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
problem types: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
affected:
{
vendor: jeffparker
product: YARPP – Yet Another Related Posts Plugin
versions:
version: *, status: affected, lessThanOrEqual: 5.30.3, versionType: semver
defaultStatus: unaffected
}
metrics:
cvssV3_1: [
version: 3.1
vectorString: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
baseScore: 6.4
baseSeverity: MEDIUM
]