Stored Cross-Site Scripting in Ova Advent Plugin for WordPress
CVE-2025-8561

6.4MEDIUM

Key Information:

Vendor

WordPress

Vendor
CVE Published:
15 October 2025

What is CVE-2025-8561?

The Ova Advent plugin for WordPress is susceptible to a Stored Cross-Site Scripting vulnerability due to inadequate input sanitization and output escaping for user-supplied attributes within its shortcodes. This flaw allows authenticated users with contributor-level access or higher to inject arbitrary web scripts into pages, leading to potential exploitation when other users interact with the compromised pages.

Affected Version(s)

Ova Advent * <= 1.1.7

References

CVSS V3.1

Score:
6.4
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Marco Wotschka
.
CVE-2025-8561 : Stored Cross-Site Scripting in Ova Advent Plugin for WordPress