CVE-2021-4451 (GCVE-0-2021-4451)
Vulnerability from cvelistv5 – Published: 2024-10-16 06:43 – Updated: 2026-04-08 16:38
VLAI
Title
NinjaFirewall <= 4.3.3 - Authenticated PHAR Deserialization
Summary
The NinjaFirewall plugin for WordPress is vulnerable to Authenticated PHAR Deserialization in versions up to, and including, 4.3.3. This allows authenticated attackers to perform phar deserialization on the server. This deserialization can allow other plugin or theme exploits if vulnerable software is present (WordPress, and NinjaFirewall).
Severity
6.6 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| nintechnet | NinjaFirewall (WP Edition) – Advanced Security Plugin and Firewall |
Affected:
0 , < 4.3.4
(semver)
|
|
| ninjatechnologiesnetwork | ninja_firewall |
Affected:
0 , < 4.3.4
(custom)
cpe:2.3:a:ninjatechnologiesnetwork:ninja_firewall:*:*:*:*:*:*:*:* |
Credits
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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