---
cve: "CVE-2022-51021"
severity: "HIGH"
cvss: 8.8
epss: "0.5%"
vendor: "WPDeveloper"
kev: false
exploited: false
published: "2026-10-22 11:17:04"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-10-29T16:49:51+01:00"
---

# CVE-2022-51021

> 8.8 HIGH · 🧪 PoC

## Beschreibung

NotificationX plugin for WordPress 2.0.0 before 2.3.12 contains an unauthenticated SQL injection vulnerability that allows remote attackers to manipulate database queries by supplying an array-form 'id' parameter to /wp-json/notificationx/v1/notification/{id}. Attackers can pass id[1] with crafted SQL, such as time-based SLEEP payloads, along with an api_key derived from md5(home_url()), which flows unsanitized into Database::get_where_query to extract database contents. Exploitation evidence was first observed by the Shadowserver Foundation on 2023-10-18.

## CNA-Record (Kanon, cvelistV5)

- CNA: **VulnCheck**
- State: PUBLISHED
- Stand: 2026-10-23 21:15:37
- CNA-CVSS: **8.8** (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N`)

## CISA-Anreicherung (vulnrichment/ADP)

- CISA-SSVC (Coordinator, v2.0.3):
  - Exploitation: **none**
  - Automatable: **yes**
  - Technical Impact: **partial**

## CVSS-Vektor

```
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |

## Schwachstellen-Klasse

- **CWE-89** — Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
  The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. Without sufficient removal or quoting of SQL syntax in user-controllable inputs, the generated SQL query can cause those inputs to be interpreted as…

## Angriffsmuster (CAPEC)

- [CAPEC-7 — Blind SQL Injection](https://capec.mitre.org/data/definitions/7.html) _(Severity: High)_
- [CAPEC-66 — SQL Injection](https://capec.mitre.org/data/definitions/66.html) _(Severity: High)_
- [CAPEC-108 — Command Line Execution through SQL Injection](https://capec.mitre.org/data/definitions/108.html) _(Severity: Very High)_
- [CAPEC-109 — Object Relational Mapping Injection](https://capec.mitre.org/data/definitions/109.html) _(Severity: High)_
- [CAPEC-110 — SQL Injection through SOAP Parameter Tampering](https://capec.mitre.org/data/definitions/110.html) _(Severity: Very High)_
- [CAPEC-470 — Expanding Control over the Operating System from the Database](https://capec.mitre.org/data/definitions/470.html) _(Severity: Very High)_

## Referenzen

- <https://wpscan.com/vulnerability/d1480717-726d-4be2-95cb-1007a3f010bb>
- <https://github.com/projectdiscovery/nuclei-templates/blob/main/http/vulnerabilities/wordpress/notificationx-sqli.yaml>
- <https://wordpress.org/plugins/notificationx/>
- <https://www.vulncheck.com/advisories/notificationx-wordpress-plugin-2.3.12-unauthenticated-sql-injection-via-notification-rest-endpoint>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/sicherheitsluecken/cve-2022-51021/) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_