WP Fastest Cache <= 1.1.2 - Cross-Site Request Forgery via 'wpfc_purgecache_varnish_callback'

2023-04-06 00:00

Marco Wotschka

Strategic Overview

Status

Patched in 1.1.3

Affected PluginWP Fastest Cache – WordPress Cache Plugin

Affected Version<= 1.1.2

CVSS4.3Medium

CVECVE-2023-1920

View all WP Fastest Cache – WordPress Cache Plugin vulnerabilities

Vulnerability Overview

The WP Fastest Cache plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 1.1.2. This is due to missing or incorrect nonce validation on the wpfc_purgecache_varnish_callback function. This makes it possible for unauthenticated attackers to purge the varnish cache via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

Technical Analysis

REMEDIATION: Update to version 1.1.3, or a newer patched version --- IDENTIFIER: CWE-352 (Cross-Site Request Forgery (CSRF)) The web application does not, or cannot, sufficiently verify whether a request was intentionally provided by the user who sent the request, which could have originated from an unauthorized actor.

External References

https://www.cve.org/CVERecord?id=CVE-2023-1920 https://www.wordfence.com/threat-intel/vulnerabilities/id/c8e90994-3b5c-4ae6-a27f-890a9101b440

CVSS Vector

4.3

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionRequired
ScopeUnchanged
ConfidentialityNone
IntegrityLow
AvailabilityNone

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