Severity by source
AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
Unauthenticated network XSS needing victim interaction (UI:R) with browser-context script execution crossing scope (S:C), yielding low confidentiality/integrity impact and no genuine availability impact.
Primary rating from Vendor (Patchstack).
CVSS VectorVendor: Patchstack
Lifecycle Timeline
1DescriptionCVE.org
Unauthenticated Cross Site Scripting (XSS) in Classified Listing <= 5.4.2 versions.
AnalysisAI
Cross-site scripting in the Classified Listing WordPress plugin (by RadiusTheme) versions 5.4.2 and earlier lets a remote, unauthenticated attacker inject malicious script that executes in a victim's browser when they interact with a crafted link or page. Reported by Patchstack and rated CVSS 7.1, the flaw carries a scope change (S:C) meaning the injected script can act beyond the vulnerable component into the wider browsing context. There is no public exploit identified at time of analysis and no active exploitation reported.
Technical ContextAI
The affected software is the Classified Listing plugin (CPE cpe:2.3:a:radiustheme:classified_listing) for WordPress, which provides classified-ad and directory functionality on WordPress sites. The root cause is CWE-79 (Improper Neutralization of Input During Web Page Generation), i.e. user-supplied input is reflected or stored and rendered into HTML output without adequate output encoding or input sanitization. Because the CVSS vector marks PR:N and UI:R, the injection point is reachable by an unauthenticated actor but requires a victim to interact (e.g. click a link or visit a crafted page) for the payload to fire in their session.
RemediationAI
No vendor-released patch version was identified in the provided data; the affected range is '<= 5.4.2', which implies remediation is to upgrade to the next release above 5.4.2 once confirmed via the Patchstack advisory (https://patchstack.com/database/wordpress/plugin/classified-listing/vulnerability/wordpress-classified-listing-plugin-5-4-2-cross-site-scripting-xss-vulnerability) and the RadiusTheme changelog - do not rely on an invented version number. Until a confirmed patched build is installed, compensating controls include deploying a WordPress-aware WAF or Patchstack's virtual patching to filter XSS payloads (trade-off: rule tuning and possible false positives), restricting or disabling the specific Classified Listing forms/endpoints that accept unauthenticated input if that functionality is not essential (trade-off: loss of public listing submission), and enforcing a strict Content-Security-Policy to reduce script execution impact (trade-off: may break legitimate inline scripts/themes and requires testing).
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Same weakness CWE-79 – Cross-site Scripting (XSS)
View allShare
External POC / Exploit Code
Leaving vuln.today
EUVD-2026-41344
GHSA-f2xx-5vfj-7fv9