Post Snippets <= 3.1.3 - Cross-Site Request Forgery to Stored Cross-Site Scripting

2022-01-31 00:00

Muhammad Adel

Strategic Overview

Status

Patched in 3.1.4

Affected PluginPost Snippets – Custom WordPress Code Snippets Customizer

Affected Version<= 3.1.3

CVSS9.6Critical

CVECVE-2021-25010

View all Post Snippets – Custom WordPress Code Snippets Customizer vulnerabilities

Vulnerability Overview

The Post Snippets WordPress plugin before 3.1.4 does not have CSRF check when importing files, allowing attacker to make a logged In admin import arbitrary snippets. Furthermore, imported snippers are not sanitised and escaped, which could lead to Stored Cross-Site Scripting issues

Technical Analysis

REMEDIATION: Update to version 3.1.4, 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-2021-25010 https://www.wordfence.com/threat-intel/vulnerabilities/id/82acefe0-a839-4721-858d-120326e45664

CVSS Vector

9.6

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionRequired
ScopeChanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

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