Short URL <= 1.6.7 - Missing Authorization via multiple AJAX functions

2023-07-31 00:00
Anonymous

Strategic Overview

Status
Patched in 1.6.8
Affected Plugin
Short URL
Affected Version
<= 1.6.7
CVSS
5.4Medium
Weakness type
CWE-862 · Missing Authorization
CVE
CVE pending
View all Short URL vulnerabilities

At a glance

This record tracks a medium-severity Missing Authorization vulnerability in the Short URL WordPress plugin, affecting versions <= 1.6.7. It carries a CVSS score of 5.4 (reachable over the network; low attack complexity). The root cause is a missing authorization check on a reachable function. The issue is fixed in version 1.6.8; sites on affected versions should update now. Disclosed July 2023.

Vulnerability Overview

The Short URL plugin for WordPress is vulnerable to unauthorized access of data, modification of data, and loss of data due to a missing capability check on multiple AJAX functions in versions up to, and including, 1.6.7. This makes it possible for authenticated attackers such as subscribers to validate, reset, and delete links.

Technical Analysis

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

CWE-862: Missing Authorization

Reaching this weakness in Short URL <= 1.6.7 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 Short URL the fix is 1.6.8: builds <= 1.6.7 are affected, anything from 1.6.8 onward is not.

Remediation

Update to version 1.6.8, 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: Short URL 1.6.8 closes this, and updating the plugin is the step that ends it.

  • Login Security
  • Alerts

External References

https://www.wordfence.com/threat-intel/vulnerabilities/id/dcd05142-9700-46a8-9ca6-f85e81dfee0d

Related records

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