All-in-One WP Migration <= 6.97 - Authenticated Stored Cross-Site Scripting

2019-07-18 00:00
Connum

Strategic Overview

Status
Patched in 7.0
Affected Plugin
All-in-One WP Migration and Backup
Affected Version
< 7.0
CVSS
5.5Medium
Weakness type
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE
CVE pending
View all All-in-One WP Migration and Backup vulnerabilities

At a glance

This record tracks a medium-severity Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in the All-in-One WP Migration and Backup WordPress plugin, affecting versions < 7.0. It carries a CVSS score of 5.5 (reachable over the network; low attack complexity). Exploitation requires an authenticated account. The issue is fixed in version 7.0; sites on affected versions should update now. Disclosed July 2019, reported by Connum.

Vulnerability Overview

The All-in-One WP Migration plugin for WordPress is vulnerable to Cross-Site Scripting due to the fact that the backup description on the backup history overview page does not sanitize/escape html entities when generating the input field.

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 interaction from a victim user.

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Reaching this weakness in All-in-One WP Migration and Backup < 7.0 takes any authenticated account. Cross-site scripting happens when input from a request is written into a page without being escaped for the context it lands in, so the browser parses attacker-supplied text as markup or script.

Injected script runs with the privileges of whoever views the affected page, which is how these flaws turn into administrator session theft, silent account creation or persistent backdoors in page content. For All-in-One WP Migration and Backup the fix is 7.0: builds < 7.0 are affected, anything from 7.0 onward is not.

Remediation

Update to version 7.0, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to All-in-One WP Migration and Backup: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: All-in-One WP Migration and Backup 7.0 closes this, and updating the plugin is the step that ends it.

  • Firewall
  • Alerts

External References

https://www.wordfence.com/threat-intel/vulnerabilities/id/10a0abd6-1905-4a90-8488-29d44df7aeb9

Related records

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