CVE-2025-8561CWE-87

CVE-2025-8561

Medium · published October 15, 2025

CVSS v3.1
6.4
EPSS
0%
Percentile
13.2
In the wild
Unconfirmed
What it is

The Ova Advent plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's shortcodes in all versions up to, and including, 1.1.7 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

The record
Technical detail
CVSS v3.1
6.4 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00231 · 13.2th percentile
Weakness
CWE-87 · Improper Neutralization of Alternate XSS Syntax
Published
2025-10-15T10:15Z
References (3)
https://themeforest.net/item/em4u-event-management-multipurpose-wordpress-theme/20846579 · [email protected]https://themeforest.net/item/em4u-event-management-multipurpose-wordpress-theme/20846579#item-description__change_log · [email protected]https://www.wordfence.com/threat-intel/vulnerabilities/id/da6bf521-0c22-4839-8fa6-a0d67e28cfbd?source=cve · [email protected]
EPSS history
Timeline
  • 15 OCT 05:23Z
    Ova Advent <= 1.1.7 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode
    cvelistv5