CVE-2021-24968

Ultimate FAQ <= 2.1.1 - Missing Authorization to Arbitrary FAQ Creation

2021-12-27 00:00
Krzysztof Zając

Strategic Overview

Status
Patched in 2.1.2
Affected Plugin
Ultimate FAQ Accordion Plugin
Affected Version
< 2.1.2
CVSS
5.7Medium
Weakness type
CWE-862 · Missing Authorization
CVE
CVE-2021-24968
View all Ultimate FAQ Accordion Plugin vulnerabilities

At a glance

CVE-2021-24968 is a medium-severity Missing Authorization vulnerability in the Ultimate FAQ Accordion Plugin WordPress plugin, affecting versions < 2.1.2. It carries a CVSS score of 5.7 (reachable over the network; low attack complexity; high integrity impact). The root cause is a missing authorization check on a reachable function. The issue is fixed in version 2.1.2; sites on affected versions should update now. Disclosed December 2021, reported by Krzysztof Zając.

Vulnerability Overview

The Ultimate FAQ WordPress plugin before 2.1.2 does not have capability and CSRF checks in the ewd_ufaq_welcome_add_faq and ewd_ufaq_welcome_add_faq_page AJAX actions, available to any authenticated users. As a result, any users, with a role as low as Subscriber could create FAQ and FAQ questions

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed. A successful exploit has high impact on integrity.

CWE-862: Missing Authorization

Reaching this weakness in Ultimate FAQ Accordion Plugin < 2.1.2 takes a caller who can reach the endpoint. 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 Ultimate FAQ Accordion Plugin the fix is 2.1.2: builds < 2.1.2 are affected, anything from 2.1.2 onward is not.

Remediation

Update to version 2.1.2, 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: Ultimate FAQ Accordion Plugin 2.1.2 closes this, and updating the plugin is the step that ends it.

  • Login Security
  • Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2021-24968https://www.wordfence.com/threat-intel/vulnerabilities/id/80b3c2d3-b8dc-429f-b2d7-6a697ad47a9ahttps://nvd.nist.gov/vuln/detail/CVE-2021-24968

Related records

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