CVE-2025-5701

HyperComments <= 1.2.2 - Unauthenticated (Subscriber+) Arbitrary Options Update

Published Jun 5, 2025 CVSS 3.1 · 8.8 High EPSS 2.2% KEV · Not listed

Description

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.

Analysis

Technical impact

The HyperComments plugin for WordPress contains a missing capability check on the hc_request_handler function, allowing unauthenticated users to modify any WordPress option. An attacker can use this to change the default role for new registrations to administrator, enable user registration, and thereby create an administrative account with full access to the site. This flaw leads directly to privileged control over the affected WordPress installation.

Affected Systems

All WordPress sites that have the HyperComments plugin version 1.2.2 or earlier installed are impacted. The vulnerability exists in the siteheart:HyperComments plugin as distributed to users through the WordPress plugin repository.

Risk and Exploitability

The CVSS score of 8.8 indicates a high severity weakness, and the EPSS score of 2% indicates a low likelihood of exploitation. The vulnerability was not listed in CISA KEV. Based on the description, it is inferred that the attacker can exploit the flaw remotely by sending crafted HTTP requests to the plugin’s request handler, without any authentication. Once successful, the attacker can perform privilege escalation and take full administrative control of the site.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

siteheart

HyperComments

unaffected

Version	Status	Constraints
`0`	affected	≤ 1.2.2

No data.

Vendor	Product	Versions
Siteheart	Hypercomments Plugin	—
Wordpress	Wordpress	—

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

Update HyperComments to the latest version (≥1.2.3) as soon as possible.
Revoke or restrict the default role for new registrations and disable user registration if not required for the site’s operation.
Review existing user accounts and remove any newly created administrator accounts, and enable logging of option changes to detect future unauthorized activity.

Generated by OpenCVE AI on June 18, 2026 at 06:56 UTC.

Tracking

Advisories

Source	ID	Title
EUVD	EUVD-2025-16984	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.

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: 2.2% (2.234% probability within 30 days)

Exploitation none

Automatable yes

Technical Impact total

References

Link	Providers
https://plugins.trac.wordpress.org/browser/hypercomments/trunk/hypercomments.php
https://www.wordfence.com/threat-intel/vulnerabilities/id/07fd6bee-5b00-4fc1-9f7a-3857fd35c763?source=cve

History

Apr 8, 2026 5:00 PM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics	cvssV3_1 `{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}`	cvssV3_1 `{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}`

Jun 5, 2025 7:15 PM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Jun 5, 2025 11:30 AM Description updated. Title updated. Weaknesses updated. Added references. Scoring metrics updated View changes

Type	Values Removed	Values Added
Description		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.
Title		HyperComments <= 1.2.2 - Unauthenticated (Subscriber+) Arbitrary Options Update
Weaknesses		CWE-862
References		https://plugins.trac.wordpress.org/browser/hypercomments/trunk/hypercomments.php https://www.wordfence.com/threat-intel/vulnerabilities/id/07fd6bee-5b00-4fc1-9f7a-3857fd35c763?source=cve
Metrics		cvssV3_1 `{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}`