CVE-2019-17574

Popup-Maker <= 1.8.12 - Unauthenticated information disclosure

2019-10-14 00:00
Dimopoulos Elias

Strategic Overview

Status
Patched in 1.8.13
Affected Plugin
Popup Maker – Boost Sales, Conversions, Optins, Subscribers with the Ultimate WP Popup Builder
Affected Version
<= 1.8.12
CVSS
7.5High
Weakness type
CWE-287 · Improper Authentication
CVE
CVE-2019-17574
View all Popup Maker – Boost Sales, Conversions, Optins, Subscribers with the Ultimate WP Popup Builder vulnerabilities

At a glance

CVE-2019-17574 is a high-severity Improper Authentication vulnerability in the Popup Maker WordPress plugin, affecting versions <= 1.8.12. It carries a CVSS score of 7.5 (reachable over the network; low attack complexity; high confidentiality impact). Exploitation requires no authentication. The issue is fixed in version 1.8.13; sites on affected versions should update now. Disclosed October 2019, reported by Dimopoulos Elias.

Vulnerability Overview

An issue was discovered in the Popup Maker plugin before 1.8.13 for WordPress. An unauthenticated attacker can partially control the arguments of the do_action function to invoke certain popmake_ or pum_ methods, as demonstrated by controlling content and delivery of popmake-system-info.txt (aka the "support debug text file").

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. A successful exploit has high impact on confidentiality.

CWE-287: Improper Authentication

Reaching this weakness in Popup Maker <= 1.8.12 takes no account at all. Improper authentication means the mechanism that proves who a caller is can be satisfied without the secret it was supposed to require.

An attacker authenticates as another user — administrators included — without ever knowing a password, so password policies and login rate limits never come into play. For Popup Maker the fix is 1.8.13: builds <= 1.8.12 are affected, anything from 1.8.13 onward is not.

Remediation

Update to version 1.8.13, or a newer patched version

How does WordSec protect against this?

This one needs no account at all, which puts it outside what login hardening can reach; WordSec's login security narrows the account-level paths around it, and the firewall is what inspects the request itself. None of that substitutes for the fix: Popup Maker 1.8.13 closes this, and updating the plugin is the step that ends it.

  • Login Security
  • Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2019-17574https://www.wordfence.com/threat-intel/vulnerabilities/id/5b9a0751-934f-4830-80c9-39260ec1cb4fhttps://nvd.nist.gov/vuln/detail/CVE-2019-17574

Related records

Vulnerability data © Defiant, Inc., provided under the Wordfence Intelligence T&C