What is CVE-2025-0862?

CVE-2025-0862 is a medium-severity vulnerability in Supersaas – Online Appointment Scheduling, classified under Cross-site Scripting. CVSS score: 4.9/10. Published 2025-02-11.

How severe is CVE-2025-0862?

Medium severity. CVSS v3 base score is 4.9 out of 10.

Is CVE-2025-0862 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XSS in Supersaas – Online Appointment Scheduling

CVE-2025-0862

The SuperSaaS – online appointment scheduling plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘after’ parameter in all versions up to, and including, 2.1.12 due to insufficient input sanitization and output escaping. 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. This is limited to Chromium-based browsers (e.g. Chrome, Edge, Brave).

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.004 (33.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:N.

Affected products

Supersaas – Online Appointment Scheduling — versions 0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2025-0862?: CVE-2025-0862 is a medium-severity vulnerability in Supersaas – Online Appointment Scheduling, classified under Cross-site Scripting. CVSS score: 4.9/10. Published 2025-02-11.
How severe is CVE-2025-0862?: Medium severity. CVSS v3 base score is 4.9 out of 10.
Is CVE-2025-0862 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.