Medium (6.1) in outsidesource osd subscribe. EPSS 0.9% chance of exploitation in the next 30 days.
The OSD Subscribe WordPress plugin is vulnerable to Reflected Cross-Site Scripting via the osd_subscribe_message parameter found in the ~/options/osd_subscribe_options_subscribers.php file which allows attackers to inject arbitrary web scripts, in versions up to and including 1.2.3.
Severity
CVSS 3.1
6.1 medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS
0.9% chance of exploitation in the next 30 days; higher than 59% of CVEs (scores of 2026-10-31)