CVE-2022-0840

Easy Social Icons <= 3.2.0 - Admin+ Stored Cross-Site Scripting

2022-03-21 00:00

Strategic Overview

Status: Patched in 3.2.1
Affected Plugin: Easy Social Icons
Affected Version: < 3.2.1
CVSS: 5.5Medium
Weakness type: CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE: CVE-2022-0840

View all Easy Social Icons vulnerabilities

At a glance

CVE-2022-0840 is a medium-severity Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in the Easy Social Icons WordPress plugin, affecting versions < 3.2.1. It carries a CVSS score of 5.5 (reachable over the network; low attack complexity). The issue is fixed in version 3.2.1; sites on affected versions should update now. Disclosed March 2022, reported by qerogram.

Vulnerability Overview

The Easy Social Icons WordPress plugin before 3.2.1 does not properly escape the image_file field when adding a new social icon, allowing high privileged users to inject arbitrary javascript even when the unfiltered_html capability is disallowed.

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 Easy Social Icons < 3.2.1 takes a caller who can reach the endpoint. 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 Easy Social Icons the fix is 3.2.1: builds < 3.2.1 are affected, anything from 3.2.1 onward is not.

Remediation

Update to version 3.2.1, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to Easy Social Icons: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Easy Social Icons 3.2.1 closes this, and updating the plugin is the step that ends it.

Firewall
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2022-0840 https://www.wordfence.com/threat-intel/vulnerabilities/id/c59871cc-2d62-4eea-a78b-19810570c47d https://nvd.nist.gov/vuln/detail/CVE-2022-0840

Related records

Same weakness class

Other vulnerabilities in Easy Social Icons

CVSS Vector

5.5

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredHigh
User InteractionNone
ScopeChanged
ConfidentialityLow
IntegrityLow
AvailabilityNone

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