CVE-2021-24588

SMS Alert Order Notifications – WooCommerce <= 3.4.6 - Cross-Site Scripting

2021-08-02 00:00

Strategic Overview

Status: Patched in 3.4.7
Affected Plugin: SMS Alert – SMS & OTP for WooCommerce, Order Notifications & Abandoned Cart Recovery
Affected Version: < 3.4.7
CVSS: 6.1Medium
Weakness type: CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE: CVE-2021-24588

View all SMS Alert – SMS & OTP for WooCommerce, Order Notifications & Abandoned Cart Recovery vulnerabilities

At a glance

CVE-2021-24588 is a medium-severity Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in the SMS Alert WordPress plugin, affecting versions < 3.4.7. It carries a CVSS score of 6.1 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 3.4.7; sites on affected versions should update now. Disclosed August 2021, reported by swapnil subhash bodekar.

Vulnerability Overview

The SMS Alert Order Notifications WordPress plugin before 3.4.7 is affected by a cross site scripting (XSS) vulnerability in the plugin's setting page.

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 privileges on the target site.

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Reaching this weakness in SMS Alert < 3.4.7 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 SMS Alert the fix is 3.4.7: builds < 3.4.7 are affected, anything from 3.4.7 onward is not.

Remediation

Update to version 3.4.7, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to SMS Alert: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: SMS Alert 3.4.7 closes this, and updating the plugin is the step that ends it.

Firewall
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2021-24588 https://www.wordfence.com/threat-intel/vulnerabilities/id/215ea2de-538b-4f24-98f8-67b8314453cd https://nvd.nist.gov/vuln/detail/CVE-2021-24588

Related records

Same weakness class

Other vulnerabilities in SMS Alert – SMS & OTP for WooCommerce, Order Notifications & Abandoned Cart Recovery

CVSS Vector

6.1

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionRequired
ScopeChanged
ConfidentialityLow
IntegrityLow
AvailabilityNone

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