What is the CVSS score of CVE-2026-22384?

CVE-2026-22384 has a CVSS 3.1 base score of 9.8 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.1%.

How to fix or mitigate CVE-2026-22384?

Within 24 hours: inventory all WordPress instances using applay-shortcodes plugin and disable or deactivate the plugin immediately. Within 7 days: assess whether plugin functionality is business-critical and evaluate alternative plugins with security records; implement Web Application Firewall (WAF) rules to block suspicious serialized object payloads if plugin cannot be disabled. Within 30 days: establish a vendor communication plan for patch availability; conduct a security audit of any systems that ran this plugin during the vulnerability window; implement plugin vulnerability scanning into your WordPress security baseline.

CVE-2026-22384

CRITICAL

Deserialization of Untrusted Data (CWE-502)

2026-02-20 audit@patchstack.com

Deserialization

9.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

9.8 CRITICAL

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Re-analysis Queued

Apr 23, 2026 - 15:43 vuln.today

cvss_changed

Severity Changed

Apr 23, 2026 - 15:43 NVD

HIGH CRITICAL

CVSS changed

Apr 23, 2026 - 15:43 NVD

8.8 (HIGH) 9.8 (CRITICAL)

Analysis Generated

Mar 12, 2026 - 22:04 vuln.today

CVE Published

Feb 20, 2026 - 16:22 nvd

HIGH 8.8

DescriptionCVE.org

Deserialization of Untrusted Data vulnerability in leafcolor Applay - Shortcodes applay-shortcodes allows Object Injection.This issue affects Applay - Shortcodes: from n/a through <= 3.7.

AnalysisAI

leafcolor Applay - Shortcodes applay-shortcodes is affected by deserialization of untrusted data (CVSS 8.8).

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access

Authenticate as WordPress user

Delivery

Craft malicious serialized object payload

Exploit

Submit via plugin shortcode

Execution

Trigger unsafe deserialization

Impact

Execute arbitrary code

Access

Authenticate as WordPress user

Delivery

Craft malicious serialized object payload

Exploit

Submit via plugin shortcode

Execution

Trigger unsafe deserialization

Impact

Execute arbitrary code

Vulnerability AssessmentAI

Exploitation	WordPress installation with Applay - Shortcodes plugin version <= 3.7 enabled. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment	CVSS 8.8 (HIGH). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario	An attacker could exploit this vulnerability to compromise the affected system.
Remediation	Monitor vendor advisories for a patch. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours: inventory all WordPress instances using applay-shortcodes plugin and disable or deactivate the plugin immediately. …

Threat intelligence, references, and detailed analysis are available after sign-in.

CVE-2026-22384 vulnerability details – vuln.today

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CVE-2026-22384

Severity by source

CVSS VectorNVD

Lifecycle Timeline

DescriptionCVE.org

AnalysisAI

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Attack ChainAIDerived

Vulnerability AssessmentAI

Recommended ActionAI

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External POC / Exploit Code