CVE-2021-24777

Hotscot Contact Form < 1.3 - SQL Injection

2021-05-13 00:00

Strategic Overview

Status: Patched in 1.3
Affected Plugin: Hotscot Contact Form
Affected Version: < 1.3
CVSS: 7.2High
Weakness type: CWE-89 · Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
CVE: CVE-2021-24777

View all Hotscot Contact Form vulnerabilities

At a glance

CVE-2021-24777 is a high-severity Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in the Hotscot Contact Form WordPress plugin, affecting versions < 1.3. It carries a CVSS score of 7.2 (reachable over the network; low attack complexity; high confidentiality, integrity, availability impact). The issue is fixed in version 1.3; sites on affected versions should update now. Disclosed May 2021, reported by Syed Sheeraz Ali.

Vulnerability Overview

The view submission functionality in the Hotscot Contact Form WordPress plugin before 1.3 makes a get request with the sub_id parameter which not sanitised, escaped or validated before inserting to a SQL statement, leading to an SQL injection.

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. A successful exploit has high impact on confidentiality, integrity, availability — full site compromise territory.

CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

Reaching this weakness in Hotscot Contact Form < 1.3 takes a caller who can reach the endpoint. SQL injection happens when request data is concatenated into a query instead of being bound as a parameter, letting an attacker change the structure of the statement rather than just its values.

A working injection can read any table the database user can see, which on a WordPress install means user records, password hashes and session or API secrets stored in options. For Hotscot Contact Form the fix is 1.3: builds < 1.3 are affected, anything from 1.3 onward is not.

Remediation

Update to version 1.3, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to Hotscot Contact Form: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Hotscot Contact Form 1.3 closes this, and updating the plugin is the step that ends it.

Firewall
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2021-24777 https://www.wordfence.com/threat-intel/vulnerabilities/id/ad85b322-204a-4d74-8dde-38571fb68dd0 https://nvd.nist.gov/vuln/detail/CVE-2021-24777

CVSS Vector

7.2

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredHigh
User InteractionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

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