CVE-2026-84936

EmbedPress – PDF Embedder, 3D PDF FlipBook, Google Reviews, YouTube Videos, Upload & Embed PDF documents 4.6.0 - 4.6.3 - Unauthenticated Paid API Consumption and Database Row Injection

2026-09-03 00:00

Strategic Overview

Status: Patched in 4.6.4
Affected Plugin: EmbedPress – PDF Embedder, 3D PDF FlipBook, Google Reviews, YouTube Videos, Upload & Embed PDF documents
Affected Version: 4.6.0 – 4.6.3
CVSS: 5.3Medium
Weakness type: CWE-400 · Uncontrolled Resource Consumption
CVE: CVE-2026-84936

View all EmbedPress – PDF Embedder, 3D PDF FlipBook, Google Reviews, YouTube Videos, Upload & Embed PDF documents vulnerabilities

At a glance

CVE-2026-84936 is a medium-severity Uncontrolled Resource Consumption vulnerability in the EmbedPress WordPress plugin, affecting versions 4.6.0 – 4.6.3. It carries a CVSS score of 5.3 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 4.6.4; sites on affected versions should update now. Disclosed September 2026, reported by RIA Labs.

Vulnerability Overview

The EmbedPress – PDF Embedder, 3D PDF FlipBook, Google Reviews, YouTube Videos, Upload & Embed PDF documents plugin for WordPress is vulnerable to Denial of Service in versions 4.6.0 through 4.6.3. This is due to missing authorization on the /google-reviews/places REST route, whose GET and POST handlers were gated only on edit_posts (or entirely open) rather than manage_options, making them accessible to unauthenticated or low-privileged users. This makes it possible for unauthenticated attackers to make repeated billable third-party API calls using the site's configured API key and insert an unlimited number of attacker-controlled rows into the database via the unprotected REST endpoint.

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, and no interaction from a victim user.

CWE-400: Uncontrolled Resource Consumption

Reaching this weakness in EmbedPress 4.6.0 – 4.6.3 takes no account at all. Uncontrolled resource consumption means a request can make the server do an amount of work it never bounds, because the size or repetition of the job is taken from the request rather than capped by the code.

A single caller can hold PHP workers, database connections or disk open long enough to slow the site for everyone, without needing any account or any other flaw. For EmbedPress the fix is 4.6.4: builds 4.6.0 – 4.6.3 are affected, anything from 4.6.4 onward is not.

Remediation

Update to version 4.6.4, or a newer patched version

How does WordSec protect against this?

Requests carrying this pattern arrive without a session, so nothing upstream of the firewall gets a chance to reject them: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: EmbedPress 4.6.4 closes this, and updating the plugin is the step that ends it.

Firewall
Login Security
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2026-84936 https://www.wordfence.com/threat-intel/vulnerabilities/id/0bd24676-7ac3-4e8b-90a2-0cb754eea764 https://nvd.nist.gov/vuln/detail/CVE-2026-84936

Related records

Other vulnerabilities in EmbedPress – PDF Embedder, 3D PDF FlipBook, Google Reviews, YouTube Videos, Upload & Embed PDF documents

CVSS Vector

5.3

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

Base

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

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