CVE-2024-35172

ShortPixel Adaptive Images <= 3.8.3 - Authenticated (Admin+) Server-Side Request Forgery

2024-05-10 00:00
Dhabaleshwar Das

Strategic Overview

Status
Patched in 3.8.4
Affected Plugin
ShortPixel Adaptive Images – WebP, AVIF, CDN, Image Optimization
Affected Version
<= 3.8.3
CVSS
5.5Medium
Weakness type
CWE-918 · Server-Side Request Forgery (SSRF)
CVE
CVE-2024-35172
View all ShortPixel Adaptive Images – WebP, AVIF, CDN, Image Optimization vulnerabilities

At a glance

CVE-2024-35172 is a medium-severity Server-Side Request Forgery (SSRF) vulnerability in the ShortPixel Adaptive Images WordPress plugin, affecting versions <= 3.8.3. It carries a CVSS score of 5.5 (reachable over the network; low attack complexity). Exploitation requires an authenticated account at Admin level or above. The issue is fixed in version 3.8.4; sites on affected versions should update now. Disclosed May 2024, reported by Dhabaleshwar Das.

Vulnerability Overview

The ShortPixel Adaptive Images – WebP, AVIF, CDN, Image Optimization plugin for WordPress is vulnerable to Server-Side Request Forgery in all versions up to, and including, 3.8.3 via the is_our_cdn() function. This makes it possible for unauthenticated attackers to make web requests to arbitrary locations originating from the web application and can be used to query and modify information from internal services.

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-918: Server-Side Request Forgery (SSRF)

ShortPixel Adaptive Images <= 3.8.3 carries this weakness at is_our_cdn(), and reaching it takes an account at Admin level or above. Server-side request forgery means the application fetches a URL supplied by the caller, turning the server into a proxy for requests the attacker could not make directly.

The request originates from inside the hosting network, which is how these flaws reach cloud metadata endpoints, internal admin panels and services that trust local traffic. For ShortPixel Adaptive Images the fix is 3.8.4: builds <= 3.8.3 are affected, anything from 3.8.4 onward is not.

Remediation

Update to version 3.8.4, or a newer patched version

How does WordSec protect against this?

An attacker needs Admin access first, so the firewall sees the attempt as traffic from a logged-in account: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: ShortPixel Adaptive Images 3.8.4 closes this, and updating the plugin is the step that ends it.

  • Firewall
  • Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2024-35172https://www.wordfence.com/threat-intel/vulnerabilities/id/e72b7e6b-c8ad-44be-b23d-69e8a27670eahttps://nvd.nist.gov/vuln/detail/CVE-2024-35172

Related records

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