CVE-2026-12955

Cookie Banner for GDPR / CCPA <= 4.3.6 - Missing Authorization to Authenticated (Subscriber+) Scan Schedule Modification via gcc_save_schedule_scan AJAX Action

The GDPR Cookie Consent plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check and missing nonce verification on the gdpr_cookie_consent_ajax_save_schedule_scan() function (the wp_ajax_gcc_save_schedule_scan AJAX action) in versions up to, and including, 4.3.6. This makes it possible for authenticated attackers, with Subscriber-level access and above, to modify the plugin's cookie scan schedule configuration stored in the gdpr_scan_schedule_data option, which is an administrative function intended to be limited to users with the manage_options capability.

We have discovered 1,063 live websites that are affected by CVE-2026-12955.

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Affected Software

Product  GDPR Cookie Consent
Category Cookie compliance
Vulnerable Domains1,063 live websites (100% of GDPR Cookie Consent install base)
Vulnerable Versions
  • from 0 through 4.3.6
Vulnerable Versions Count82 versions ( 100% of all versions)


Common Weakness Enumeration

CWE-862 Missing Authorization



Details

  • Published - Jul 10, 2026
  • Updated - Jul 10, 2026

Credits

  • PRISM (finder)

Website Distribution by Country

Number of websites using CVE-2026-12955
United States229 websites


Spain166 websites
GB123 websites
Germany98 websites
France61 websites
Italy40 websites
Brazil36 websites
Czech Republic27 websites
Austria26 websites
Poland24 websites

Website Distribution by TLD

Number of websites using CVE-2026-12955
.com441 websites
.co.uk100 websites
.es64 websites
.de49 websites
.it32 websites
.com.br32 websites
.at26 websites
.cz26 websites
.org25 websites
.net24 websites

Vulnerable Versions

Vulnerable versions are highlighted in red

Websites affected by CVE-2026-12955

Top websites that are affected by CVE-2026-12955. Please click on the "Contact us" link to get more information.
DomainCountryRankContacts
****.*****.com United States***,***
*******.ca Canada***,***
*************.com United States***,***
***************.com Belgium***,***
**************.com Slovakia***,***
***************.com United States***,***
************.com United States***,***
************.**.jp Japan***,***
*************.de United States***,***
*************.de Germany*,***,***
See full domain list

FAQ

CVE-2026-12955 is Missing Authorization in GDPR Cookie Consent
A total of 1,063 websites have been identified as vulnerable to CVE-2026-12955, based on global website indexing conducted by WebTechSurvey.
The GDPR Cookie Consent is affected by the CVE-2026-12955 vulnerability.
GDPR Cookie Consent versions up to and including 4.3.6 are vulnerable to CVE-2026-12955.