CVE-2026-9710

Themeco Cornerstone < 7.8.8 (Premium, bundled with X Theme) - Subscriber+ Arbitrary User Password Hash Disclosure

The Cornerstone WordPress plugin before 7.8.8 does not enforce capability checks on one of its CSS-preview request handlers, and exposes the nonce needed to call it to every logged-in user on any wp-admin page, allowing any authenticated user to evaluate dynamic content tokens against arbitrary users and disclose their sensitive metadata including raw password hashes. This affects the premium co Cornerstone page builder distributed bundled with the X , not the unrelated free `cornerstone` Cornerstone WordPress plugin before 7.8.8 (v0.8.x) on the .org repository.

We have discovered 16,862 live websites that are affected by CVE-2026-9710.

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Affected Software

Product  THEMECO Cornerstone
Category Wordpress Plugins
Vulnerable Domains16,862 live websites (75% of THEMECO Cornerstone install base)
Vulnerable Versions
  • from 3 through 7.8.8
Vulnerable Versions Count175 versions ( 82% of all versions)


Common Weakness Enumeration

CWE-200 Exposure of Sensitive Information to an Unauthorized Actor



Details

  • Published - Jun 24, 2026
  • Updated - Jun 24, 2026

Credits

  • Real_King_Engine (ISAL FRAMEWORK) (finder)
  • WPScan (coordinator)

Website Distribution by Country

Number of websites using CVE-2026-9710
United States7,628 websites


Germany1,807 websites
GB1,129 websites
Netherlands906 websites
Canada740 websites
France508 websites
Australia506 websites
Denmark332 websites
Italy327 websites
Switzerland303 websites

Website Distribution by TLD

Number of websites using CVE-2026-9710
.com8,295 websites
.de1,203 websites
.org1,060 websites
.nl800 websites
.co.uk726 websites
.com.au434 websites
.ca399 websites
.net322 websites
.se290 websites
.ch277 websites

Vulnerable Versions

Vulnerable versions are highlighted in red

Websites affected by CVE-2026-9710

Top websites that are affected by CVE-2026-9710. Please click on the "Contact us" link to get more information.
DomainCountryRankContacts
***.********.com United States***
****.com United States**,***
********.com United States**,***
*************.org United States**,***
***********.com United States**,***
******.com United States**,***
*******.*****.com Korea, South**,***
*******************.hr Croatia**,***
*******.com United States**,***
**********.com United States**,***
See full domain list

FAQ

CVE-2026-9710 is Exposure of Sensitive Information to an Unauthorized Actor in THEMECO Cornerstone
A total of 16,862 websites have been identified as vulnerable to CVE-2026-9710, based on global website indexing conducted by WebTechSurvey.
The THEMECO Cornerstone is affected by the CVE-2026-9710 vulnerability.
THEMECO Cornerstone versions up to 7.8.8 are vulnerable to CVE-2026-9710.
CVE-2026-9710 is resolved in version 7.8.8 of THEMECO Cornerstone.