CVE-2021-24576

Easy Accordion <= 2.0.21 - Authenticated Stored Cross-Site Scripting

2021-09-10 00:00

Strategic Overview

Status: Patched in 2.0.22
Affected Plugin: Easy Accordion – AI-Powered FAQ & Accordion Blocks, Product FAQ
Affected Version: <= 2.0.21
CVSS: 6.4Medium
Weakness type: CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE: CVE-2021-24576

View all Easy Accordion – AI-Powered FAQ & Accordion Blocks, Product FAQ vulnerabilities

At a glance

CVE-2021-24576 is a medium-severity Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in the Easy Accordion WordPress plugin, affecting versions <= 2.0.21. 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 2.0.22; sites on affected versions should update now. Disclosed September 2021, reported by Asif Nawaz Minhas.

Vulnerability Overview

The Easy Accordion WordPress plugin before 2.0.22 does not properly sanitize inputs when adding new items to an accordion.

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 Accordion <= 2.0.21 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 Easy Accordion the fix is 2.0.22: builds <= 2.0.21 are affected, anything from 2.0.22 onward is not.

Remediation

Update to version 2.0.22, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to Easy Accordion: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Easy Accordion 2.0.22 closes this, and updating the plugin is the step that ends it.

Firewall
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2021-24576 https://www.wordfence.com/threat-intel/vulnerabilities/id/7c4f9958-0e5a-483c-926e-ceaee00ffa45 https://nvd.nist.gov/vuln/detail/CVE-2021-24576

Related records

Same weakness class

CVSS Vector

6.4

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

Base

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

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