CVE-2021-26609

Mangboard <= 1.9.9 - SQL Injection

2021-10-19 00:00

Strategic Overview

Status: Patched in 2.0.0
Affected Plugin: Mang Board WP
Affected Version: <= 1.9.9
CVSS: 7.5High
Weakness type: CWE-89 · Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
CVE: CVE-2021-26609

At a glance

CVE-2021-26609 is a high-severity Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in the Mang Board WP WordPress plugin, affecting versions <= 1.9.9. It carries a CVSS score of 7.5 (reachable over the network; low attack complexity; high confidentiality impact). Exploitation requires no authentication. The issue is fixed in version 2.0.0; sites on affected versions should update now. Disclosed October 2021, reported by Sang Youn Lee.

Vulnerability Overview

A vulnerability was found in Mangboard(WordPress plugin). A SQL-Injection vulnerability was found in order_type parameter. The order_type parameter makes a SQL query using unfiltered data. This vulnerability allows a remote attacker to steal user information.

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. A successful exploit has high impact on confidentiality.

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

Reaching this weakness in Mang Board WP <= 1.9.9 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 Mang Board WP the fix is 2.0.0: builds <= 1.9.9 are affected, anything from 2.0.0 onward is not.

Remediation

Update to version 2.0.0, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to Mang Board WP: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Mang Board WP 2.0.0 closes this, and updating the plugin is the step that ends it.

Firewall
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2021-26609 https://www.wordfence.com/threat-intel/vulnerabilities/id/f0a5771b-0108-4393-a54e-b5e2c35caeb0 https://nvd.nist.gov/vuln/detail/CVE-2021-26609

Related records

Other vulnerabilities in Mang Board WP

CVSS Vector

7.5

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityNone
AvailabilityNone

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