CVE-2025-3527

EventON - WordPress Virtual Event Calendar Plugin <= 4.9.6 - Missing Authorization to Authenticated (Subscriber+) Stored Cross-Site Scripting

The EventON Pro plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check in the 'assets/lib/settings/settings.js' file in all versions up to, and including, 4.9.6. This makes it possible for authenticated attackers, with Subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The vulnerability was partially patched in version 4.9.6.

We have discovered 13,666 live websites that are affected by CVE-2025-3527.

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Affected Software

Product  Eventon Premium
Category Appointment Scheduling
Vulnerable Domains13,666 live websites (90.54% of Eventon Premium install base)
Vulnerable Versions
  • from 0 through 4.9.6
Vulnerable Versions Count146 versions ( 97.33% of all versions)


Common Weakness Enumeration

CWE-862 Missing Authorization



Details

  • Published - May 17, 2025
  • Updated - May 19, 2025

Credits

  • anhchangmutrang (finder)

CVE-2025-3527 usage by Country

United States5,360 websites


Germany2,030 websites
France1,001 websites
GB500 websites
Netherlands490 websites
Spain481 websites
Italy455 websites
Switzerland376 websites
Denmark222 websites
Canada204 websites

CVE-2025-3527 usage by TLD

.com4,570 websites
.org1,782 websites
.de1,245 websites
.nl527 websites
.fr403 websites
.it366 websites
.ch316 websites
.co.uk305 websites
.es285 websites
.net249 websites

Vulnerable Versions

Vulnerable versions are highlighted in red

Websites affected by CVE-2025-3527

Top websites that are affected by CVE-2025-3527. Please click on the "Contact us" link to get more information.
DomainCountryRankContacts
*************.pl Czech Republic**,***
*****************.hr Croatia**,***
*****.com United States**,***
****.hr Croatia**,***
**************.org United States**,***
****************.net United States**,***
***********.com United States**,***
*******.com United States**,***
************.org United States**,***
*******************************.org United States**,***
See full domain list

FAQ

CVE-2025-3527 is Missing Authorization in Eventon Premium
A total of 13,666 websites have been identified as vulnerable to CVE-2025-3527, based on global website indexing conducted by WebTechSurvey.
The Eventon Premium is affected by the CVE-2025-3527 vulnerability.
Eventon Premium versions up to and including 4.9.6 are vulnerable to CVE-2025-3527.