CVE-2026-16300

Chama < 1.0.13 - Unauthenticated Arbitrary User Password Reset

Published Aug 3, 2026 CVSS 3.1 · 9.8 Critical EPSS < 1% KEV · Not listed

Description

The ChamaWP WordPress plugin before 1.0.13 does not properly validate a password reset request, allowing unauthenticated attackers to reset the password of arbitrary users, including administrators, which could lead to a full site takeover.

Analysis

Technical impact

The ChamaWP WordPress plugin versions prior to 1.0.13 lack proper validation for password reset requests. This flaw lets anyone who can reach the reset endpoint set a new password for any user—including administrators—without authentication. If an attacker gains such control, they can take complete control of the site and its data.

Affected Systems

WordPress sites using the ChamaWP plugin with any release before 1.0.13 are affected. No specific version numbers beyond the "less than 1.0.13" boundary are listed in the CNA data. Site administrators should verify the installed plugin version and treat all earlier releases as vulnerable.

Risk and Exploitability

The attack can be carried out remotely over HTTP/HTTPS without authentication, making it readily exploitable by public or hidden actors. The CVSS score is 9.8. EPSS score is < 1%, indicating a very low probability of exploitation. The vulnerability is not listed in the CISA KEV catalog, yet its simplicity and impact warrant immediate attention.

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

Unknown

ChamaWP

unaffected

Version	Status	Constraints
`0`	affected	< 1.0.13

No data.

Vendor Product Versions

Chamawp

Version	Status	Scheme	Platform
`[0,1.0.13)`	affected	semver	—

Wordpress

Version	Status	Scheme	Platform
`—`	unaffected	—	—

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

Update ChamaWP to version 1.0.13 or newer. If an update is unavailable, remove or disable the plugin entirely.
Implement a temporary web‑application firewall rule or .htaccess restriction to block unauthenticated requests to the password‑reset endpoint.
Ensure that users enforce strong, unique passwords and change them regularly.

Generated by OpenCVE AI on August 4, 2026 at 10:37 UTC.

Tracking

Advisories

No advisories available

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

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: < 1% (0.498% probability within 30 days)

Exploitation none

Automatable yes

Technical Impact total

References

Link	Providers
https://wpscan.com/vulnerability/0508f8c8-8ecc-4982-b14c-bf5f1c3d1c8f/

History

Aug 3, 2026 4:30 PM Weaknesses updated. Scoring metrics updated View changes

Type	Values Removed	Values Added
Weaknesses		CWE-862
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'}` ssvc `{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Aug 3, 2026 4:15 PM First appearance in the feed. Affected vendors updated View changes

Type	Values Removed	Values Added
First Time appeared		Chamawp Chamawp chamawp Wordpress Wordpress wordpress
Vendors & Products		Chamawp Chamawp chamawp Wordpress Wordpress wordpress

Aug 3, 2026 6:45 AM Description updated. Title updated. Added references View changes

Type	Values Removed	Values Added
Description		The ChamaWP WordPress plugin before 1.0.13 does not properly validate a password reset request, allowing unauthenticated attackers to reset the password of arbitrary users, including administrators, which could lead to a full site takeover.
Title		Chama < 1.0.13 - Unauthenticated Arbitrary User Password Reset
References		https://wpscan.com/vulnerability/0508f8c8-8ecc-4982-b14c-bf5f1c3d1c8f/