Shield Security <= 21.0.8 - Cross-Site Request Forgery to SQL Injection
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- SQL injection
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-89.
Summary
The Shield Security plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 21.0.8. This is due to the plugin allowing nonce verification to be bypassed via user-supplied parameter in the 'isNonceVerifyRequired' function. This makes it possible for unauthenticated attackers to execute SQL injection attacks, extracting sensitive information from the database, via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| paultgoodchild | Shield: Blocks Bots, Protects Users, and Prevents Security Breaches | up to 21.0.8 | — | No fix listed | CNA |
- Shield: Blocks Bots, Protects Users, and Prevents Security Breaches Vendorpaultgoodchild Affected up to 21.0.8 Fixed in — No fix listed CNA
CPE names Threatist (inferred) · 1
Inferred from how NVD named this product before; not given by a source.
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:getshieldsecurity:shield_security:*:*:*:*:*:*:*:* | — | — | Getshieldsecurity |
- cpe:2.3:a:getshieldsecurity:shield_security:*:*:*:*:*:*:*:* Versions — — ·Getshieldsecurity
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-0722
- 2026-10-03 Alias added: GHSA-fphv-qqwf-v9gp
References
Other 6
- https://www.wordfence.com/threat-intel/vulnerabilities/id/f53d9579-56e9-41aa-b6b7-2472734ee719?source=cve
- https://plugins.trac.wordpress.org/browser/wp-simple-firewall/tags/21.0.8/src/lib/src/ActionRouter/CaptureAjaxAction.php#L42
- https://plugins.trac.wordpress.org/browser/wp-simple-firewall/tags/21.0.8/src/lib/src/ActionRouter/Actions/BaseAction.php#L125
- https://plugins.trac.wordpress.org/browser/wp-simple-firewall/tags/21.0.8/src/lib/src/Tables/DataTables/LoadData/Traffic/BuildTrafficTableData.php#L114
- https://research.cleantalk.org/cve-2026-0722/
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3439494%40wp-simple-firewall&new=3439494%40wp-simple-firewall&sfp_email=&sfph_mail=
More paultgoodchild vulnerabilities
- TI-2026-83515 Stored cross-site scripting in Shield Security via request path CVSS 3.1HIGH 7.2
- TI-2026-00363 Shield Security <= 21.0.8 - Unauthenticated Reflected Cross-Site Scripting via 'message' Parameter CVSS 3.1MEDIUM 6.1
- TI-2025-14019 Shield Security <= 21.0.9 - Authenticated (Subscriber+) Insecure Direct Object Reference to Disable Google Authenticator CVSS 3.1MEDIUM 4.3
- TI-2025-13178 Missing authorization in paultgoodchild Shield: Blocks Bots, Protects Users, and Prevents… CVSS 3.1MEDIUM 4.3
- TI-2024-04046 Shield Security – Smart Bot Blocking & Intrusion Prevention Security <= 19.1.13 - Cross-Site Request Forgery CVSS 3.1MEDIUM 4.3
Sources
- CVE-2026-0722 · CVE Program
- CVE-2026-0722 · NVD
- FIRST EPSS
- GHSA-fphv-qqwf-v9gp · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences