CVE-2022-2937

Image Hover Effects Ultimate <= 9.7.3 - Authenticated Stored Cross-Site Scripting via Title & Description

2022-08-31 00:00
Zhouyuan Yang

Strategic Overview

Status
Patched in 9.8.0
Affected Plugin
Image Hover Effects Ultimate ( Image Gallery, Effects, Lightbox, Comparison & Magnifier )
Affected Version
<= 9.7.3
CVSS
6.4Medium
Weakness type
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE
CVE-2022-2937
View all Image Hover Effects Ultimate ( Image Gallery, Effects, Lightbox, Comparison & Magnifier ) vulnerabilities

At a glance

CVE-2022-2937 is a medium-severity Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in the Image Hover Effects Ultimate ( Image Gallery, Effects, Lightbox, Comparison & Magnifier ) WordPress plugin, affecting versions <= 9.7.3. It carries a CVSS score of 6.4 (reachable over the network; low attack complexity). Exploitation requires an authenticated account. The issue is fixed in version 9.8.0; sites on affected versions should update now. Disclosed August 2022, reported by Zhouyuan Yang.

Vulnerability Overview

The Image Hover Effects Ultimate plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Title & Description values that can be added to an Image Hover in versions up to, and including, 9.7.3 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. By default, the plugin only allows administrators access to edit Image Hovers, however, if a site admin makes the plugin's features available to lower privileged users through the 'Who Can Edit?' setting then this can be exploited by those users.

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 Image Hover Effects Ultimate ( Image Gallery, Effects, Lightbox, Comparison & Magnifier ) <= 9.7.3 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 Image Hover Effects Ultimate ( Image Gallery, Effects, Lightbox, Comparison & Magnifier ) the fix is 9.8.0: builds <= 9.7.3 are affected, anything from 9.8.0 onward is not.

Remediation

Update to version 9.8.0, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to Image Hover Effects Ultimate ( Image Gallery, Effects, Lightbox, Comparison & Magnifier ): WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Image Hover Effects Ultimate ( Image Gallery, Effects, Lightbox, Comparison & Magnifier ) 9.8.0 closes this, and updating the plugin is the step that ends it.

  • Firewall
  • Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2022-2937https://www.wordfence.com/threat-intel/vulnerabilities/id/224a9234-2cf3-48ca-878e-3d7207629bebhttps://nvd.nist.gov/vuln/detail/CVE-2022-2937

Related records

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