Auth bypass in Siteheart Hypercomments
CVE-2025-5701
The HyperComments plugin for WordPress is vulnerable to unauthorized modification of data that can lead to privilege escalation due to a missing capability check on the hc_request_handler function in all versions up to, and including, 1.2.2. This makes it possible for unauthenticated attackers to update arbitrary options on the WordPress site. This can be leveraged to update the default role for registration to administrator and enable user registration for attackers to gain administrative user access to a vulnerable site.
Vulnerability class: Broken Access Control
EPSS: 0.018 (76.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Siteheart Hypercomments — versions 0
Weakness classification (CWE)
Public proof-of-concept exploits
References
Frequently asked questions
- What is CVE-2025-5701?
- CVE-2025-5701 is a high-severity vulnerability in Siteheart Hypercomments, classified under Missing Authorization. CVSS score: 8.8/10. Published 2025-06-05.
- How severe is CVE-2025-5701?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2025-5701 known to be exploited?
- 5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.