CVE-2021-24424

WP Reset <= 1.86 - Authenticated Stored Cross-Site Scripting via extra_data Parameter

2021-05-26 00:00

Strategic Overview

Status: Patched in 1.90
Affected Plugin: WP Reset
Affected Version: <= 1.86
CVSS: 5.5Medium
Weakness type: CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE: CVE-2021-24424

At a glance

CVE-2021-24424 is a medium-severity Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in the WP Reset WordPress plugin, affecting versions <= 1.86. It carries a CVSS score of 5.5 (reachable over the network; low attack complexity). Exploitation requires an authenticated account. The issue is fixed in version 1.90; sites on affected versions should update now. Disclosed May 2021, reported by R3N0.

Vulnerability Overview

The WP Reset – Most Advanced WordPress Reset Tool WordPress plugin before 1.90 did not sanitise or escape its extra_data parameter when creating a snapshot via the admin dashboard, leading to an authenticated Stored Cross-Site Scripting issue

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 WP Reset <= 1.86 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 WP Reset the fix is 1.90: builds <= 1.86 are affected, anything from 1.90 onward is not.

Remediation

Update to version 1.90, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to WP Reset: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: WP Reset 1.90 closes this, and updating the plugin is the step that ends it.

Firewall
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2021-24424 https://www.wordfence.com/threat-intel/vulnerabilities/id/0252d07a-cf84-479d-a71b-a9b13a9765d5 https://nvd.nist.gov/vuln/detail/CVE-2021-24424

Related records

Other vulnerabilities in WP Reset

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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