CVE-2025-8682

Newsup <= 5.0.10 - Missing Authorization to Authenticated (Subscriber+) Plugin Installation

2025-10-10 00:00

Strategic Overview

Status: Patched in 5.0.11
Affected Theme: Newsup
Affected Version: <= 5.0.10
CVSS: 4.3Medium
Weakness type: CWE-862 · Missing Authorization
CVE: CVE-2025-8682

At a glance

CVE-2025-8682 is a medium-severity Missing Authorization vulnerability in the Newsup WordPress theme, affecting versions <= 5.0.10. It carries a CVSS score of 4.3 (reachable over the network; low attack complexity). Exploitation requires an authenticated account at Subscriber level or above. The issue is fixed in version 5.0.11; sites on affected versions should update now. Disclosed October 2025, reported by Dmitrii Ignatyev.

Vulnerability Overview

The Newsup theme for WordPress is vulnerable to unauthorized plugin installation due to a missing capability check on the newsup_admin_info_install_plugin() function in all versions up to, and including, 5.0.10. This makes it possible for unauthenticated attackers to install the ansar-import plugin.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no interaction from a victim user.

CWE-862: Missing Authorization

Newsup <= 5.0.10 carries this weakness at newsup_admin_info_install_plugin(), and reaching it takes an account at Subscriber level or above. A missing authorization check means a function is reachable by anyone who can reach the endpoint, because the code never asks whether the caller is allowed to perform the action.

Any user who can reach the endpoint gets to run an action reserved for higher-privileged roles, from reading protected data to changing settings or content. For Newsup the fix is 5.0.11: builds <= 5.0.10 are affected, anything from 5.0.11 onward is not.

Remediation

Update to version 5.0.11, or a newer patched version

How does WordSec protect against this?

Because it turns on account access, WordSec's login security is the relevant layer: role-based two-factor, captcha and brute-force limits raise the cost of getting the account this needs. None of that substitutes for the fix: Newsup 5.0.11 closes this, and updating the theme is the step that ends it.

Login Security
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2025-8682 https://www.wordfence.com/threat-intel/vulnerabilities/id/939b408c-ae22-40ce-b500-317150a2da3b https://nvd.nist.gov/vuln/detail/CVE-2025-8682

CVSS Vector

4.3

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeUnchanged
ConfidentialityNone
IntegrityLow
AvailabilityNone

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