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CVE-2026-97339

Status: DeferredHigh (7.2)—
Severity7.2High · CVSS 3.1
Exploitation probability0.25 %higher than 16% of CVEs
Active exploitationNonot in the CISA catalog
Public exploitNot knownno public code found

The Complianz GDPR/CCPA Cookie Consent Banner plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Comment Content via yotu-wp Cookie-Blocker Filter in all versions up to, and including, 7.5.5 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.

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The exploit bypasses WordPress's wp_kses comment sanitization because the payload uses only allow-listed tags and hides executable tokens inside quoted attribute values as plain text; the XSS is only realized when Complianz's own output-buffer filter performs str_replace() rewrites that break out of the attribute context, and requires the comment to be approved before it executes for visitors.

CVSS

Base score
7.2
Version
3.1
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days
0.25 %
Percentile among all scored CVEs
16
Score date
10/20/2026

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

ATT&CK techniques

How this vulnerability is exploited and what the attacker gains, in MITRE ATT&CK terms.

Inferred by deterministic rules from the CVSS vector and CWE. Indicative only.

ATT&CK mitigations that cover these techniques

Vulnerability ScanningRestrict Web-Based ContentPrivileged Account ManagementNetwork SegmentationLimit Access to Resource Over NetworkFilter Network Traffic

Affected technologies (1)

⚠ AI-inferred from the description — NVD hasn't analyzed this CVE yet, these aren't verified CPEs.

Complianz — Complianz-gdprAI

CWEs

References

Show 6 references

Raw JSON (NVD)

Show
{
  "id": "CVE-2026-97339",
  "cveTags": [],
  "metrics": {
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        "ssvcData": {
          "id": "CVE-2026-97339",
          "role": "CISA Coordinator",
          "options": [
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          "version": "2.0.3",
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          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 2.7,
        "exploitabilityScore": 3.9
      }
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  "affected": [
    {
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      "affectedData": [
        {
          "vendor": "complianz",
          "product": "Complianz GDPR/CCPA Cookie Consent Banner",
          "versions": [
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  "published": "2026-10-16T04:18:44.817",
  "references": [
    {
      "url": "https://plugins.trac.wordpress.org/browser/complianz-gdpr/tags/7.5.5/class-cookie-blocker.php#L458",
      "source": "security@wordfence.com"
    },
    {
      "url": "https://plugins.trac.wordpress.org/browser/complianz-gdpr/tags/7.5.5/class-cookie-blocker.php#L828",
      "source": "security@wordfence.com"
    },
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      "url": "https://plugins.trac.wordpress.org/browser/complianz-gdpr/tags/7.5.5/integrations/plugins/yotu-wp.php#L18",
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      "source": "security@wordfence.com"
    },
    {
      "url": "https://plugins.trac.wordpress.org/changeset/3743098/complianz-gdpr/trunk/integrations/plugins/yotu-wp.php",
      "source": "security@wordfence.com"
    },
    {
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/3c12e65c-eedf-4fc2-977a-7a07219ee1c2?source=cve",
      "source": "security@wordfence.com"
    }
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  "weaknesses": [
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      "source": "security@wordfence.com",
      "description": [
        {
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  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The Complianz GDPR/CCPA Cookie Consent Banner plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Comment Content via yotu-wp Cookie-Blocker Filter in all versions up to, and including, 7.5.5 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. The exploit bypasses WordPress's wp_kses comment sanitization because the payload uses only allow-listed tags and hides executable tokens inside quoted attribute values as plain text; the XSS is only realized when Complianz's own output-buffer filter performs str_replace() rewrites that break out of the attribute context, and requires the comment to be approved before it executes for visitors."
    }
  ],
  "lastModified": "2026-10-16T17:18:01.900",
  "sourceIdentifier": "security@wordfence.com"
}