CVE-2024-13509

WS Form LITE and PRO <= 1.10.13 - Unauthenticated Stored Cross-Site Scripting

2025-01-27 00:00

Strategic Overview

Status: Patched in 1.10.14
Affected Plugin: WS Form LITE – Drag & Drop Contact Form Builder
Affected Version: <= 1.10.13
CVSS: 7.2High
Weakness type: CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE: CVE-2024-13509

View all WS Form LITE – Drag & Drop Contact Form Builder vulnerabilities

At a glance

CVE-2024-13509 is a high-severity Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in the WS Form LITE WordPress plugin, affecting versions <= 1.10.13. It carries a CVSS score of 7.2 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 1.10.14; sites on affected versions should update now. Disclosed January 2025, reported by Tim Coen.

Vulnerability Overview

The WS Form LITE and PRO plugins for WordPress are vulnerable to Stored Cross-Site Scripting via the url parameter in all versions up to, and including, 1.10.13 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. NOTE: This vulnerability is partially fixed in 1.10.13 and completely fixed in 1.10.14.

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, and no interaction from a victim user.

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

Reaching this weakness in WS Form LITE <= 1.10.13 takes no account at all. 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 WS Form LITE the fix is 1.10.14: builds <= 1.10.13 are affected, anything from 1.10.14 onward is not.

Remediation

Update to version 1.10.14, or a newer patched version

How does WordSec protect against this?

Requests carrying this pattern arrive without a session, so nothing upstream of the firewall gets a chance to reject them: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: WS Form LITE 1.10.14 closes this, and updating the plugin is the step that ends it.

Firewall
Login Security
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2024-13509 https://www.wordfence.com/threat-intel/vulnerabilities/id/910d9b31-b63a-427e-830b-a4c6a7e77ade https://nvd.nist.gov/vuln/detail/CVE-2024-13509

Related records

Same weakness class

Other vulnerabilities in WS Form LITE – Drag & Drop Contact Form Builder

CVSS Vector

7.2

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

Base

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

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