CVE-2018-5658

Coming Soon Page – Responsive Coming Soon & Maintenance Mode <= 1.1.18 - Cross-Site Request Forgery

2018-01-12 00:00

Strategic Overview

Status: Patched in 1.1.19
Affected Plugin: Coming Soon Page – Responsive Coming Soon & Maintenance Mode
Affected Version: <= 1.1.18
CVSS: 8.8High
Weakness type: CWE-352 · Cross-Site Request Forgery (CSRF)
CVE: CVE-2018-5658

View all Coming Soon Page – Responsive Coming Soon & Maintenance Mode vulnerabilities

At a glance

CVE-2018-5658 is a high-severity Cross-Site Request Forgery (CSRF) vulnerability in the Coming Soon Page WordPress plugin, affecting versions <= 1.1.18. It carries a CVSS score of 8.8 (reachable over the network; low attack complexity; high confidentiality, integrity, availability impact). Exploitation requires no authentication. The issue is fixed in version 1.1.19; sites on affected versions should update now. Disclosed January 2018, reported by d4wner.

Vulnerability Overview

An issue was discovered in the responsive-coming-soon-page plugin 1.1.18 for WordPress. CSRF exists via wp-admin/admin.php.

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 privileges on the target site. A successful exploit has high impact on confidentiality, integrity, availability — full site compromise territory.

CWE-352: Cross-Site Request Forgery (CSRF)

Reaching this weakness in Coming Soon Page <= 1.1.18 takes a caller who can reach the endpoint. Cross-site request forgery abuses the fact that browsers attach a victim's cookies to any request, so a state-changing action that only checks who you are, not whether you meant to act, can be triggered from another site.

An attacker who gets a logged-in user to load a crafted page can perform that action as them, with the impact scaling to whatever the victim's role is allowed to do. For Coming Soon Page the fix is 1.1.19: builds <= 1.1.18 are affected, anything from 1.1.19 onward is not.

Remediation

Update to version 1.1.19, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to Coming Soon Page: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Coming Soon Page 1.1.19 closes this, and updating the plugin is the step that ends it.

Firewall
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2018-5658 https://www.wordfence.com/threat-intel/vulnerabilities/id/910c3d74-63ed-476d-b014-659d7780260f https://nvd.nist.gov/vuln/detail/CVE-2018-5658

Related records

Other vulnerabilities in Coming Soon Page – Responsive Coming Soon & Maintenance Mode

CVSS Vector

8.8

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionRequired
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

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