WPConsent <= 1.1.9 - Unauthenticated Stored Cross-Site Scripting via Comment Content via Simple HTML DOM Parser Noise-Key Restoration (mXSS)
The WPConsent – Cookie Banner & Cookie Consent for Privacy Compliance (GDPR / CCPA / EU Compliance Cookie Notice) plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Comment Content via Simple HTML DOM Parser Noise-Key Restoration (mXSS) in all versions up to, and including, 1.1.9 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This requires the Script Blocking feature to be enabled, and the exploit chain depends on an attacker submitting two coordinated comments — one embedding event-handler syntax inside an allowed <code> element and one placing the deterministic ___noise___ restoration key inside an allowed <abbr title=""> attribute — with the key offset confirmable via an unauthenticated wpconsent_debug=1 request.
CVE-2026-97640
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-97640
WPConsent – Cookie Banner & Cookie Consent for Privacy Compliance (GDPR / CCPA / EU Compliance Cookie Notice)
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "smub",
"product": "WPConsent – Cookie Banner & Cookie Consent for Privacy Compliance (GDPR / CCPA / EU Compliance Cookie Notice)",
"versions": [
{
"status": "affected",
"version": "0",
"versionType": "semver",
"lessThanOrEqual": "1.1.9"
}
],
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-97640
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #32537 · Revision 1
- Added to Heist Feed
- Publisher date