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Meloo CVE-2026-25358

| EUVD-2026-15679 HIGH
Deserialization of Untrusted Data (CWE-502)
2026-03-25 Patchstack
Deserialization Meloo
8.8
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
8.8 HIGH
AV:N/AC:L/PR:L/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:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

7
Re-analysis Queued
Apr 24, 2026 - 16:37 vuln.today
cvss_changed
Analysis Updated
Apr 16, 2026 - 06:15 EUVD-patch-fix
executive_summary
Re-analysis Queued
Apr 16, 2026 - 05:29 backfill_euvd_patch
patch_released
Patch available
Apr 16, 2026 - 05:29 EUVD
2.8.2
EUVD ID Assigned
Mar 25, 2026 - 16:47 euvd
EUVD-2026-15679
Analysis Generated
Mar 25, 2026 - 16:47 vuln.today
CVE Published
Mar 25, 2026 - 16:14 nvd
HIGH 8.8

DescriptionCVE.org

Deserialization of Untrusted Data vulnerability in rascals Meloo meloo allows Object Injection.This issue affects Meloo: from n/a through < 2.8.2.

AnalysisAI

A PHP Object Injection vulnerability exists in the Rascals Meloo WordPress theme due to unsafe deserialization of untrusted data, classified under CWE-502 (Deserialization of Untrusted Data). This vulnerability affects Meloo versions prior to 2.8.2 and allows attackers to inject malicious objects that could lead to remote code execution or other security compromises. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Authenticate to Meloo application
Exploit
Send crafted serialized object payload
Execution
Trigger unsafe deserialization in parser
Impact
Achieve arbitrary code execution with application privileges
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Vulnerability AssessmentAI

Exploitation Authenticated user required. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment Although CVSS and EPSS metrics are not available, CWE-502 (Deserialization of Untrusted Data) is widely recognized as a high-impact vulnerability class with demonstrated real-world exploitability in WordPress environments. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An attacker could craft a malicious HTTP request containing a carefully constructed serialized PHP object targeting a public-facing Meloo theme function (such as a custom AJAX handler or option sanitization routine) that fails to validate input before calling unserialize(). When the Meloo theme processes this request, the serialized payload triggers a gadget chain using available WordPress and plugin classes, allowing the attacker to execute arbitrary PHP code with the privileges of the web server. …
Remediation Immediately upgrade the Rascals Meloo theme to version 2.8.2 or later through the WordPress admin dashboard (Appearance > Themes > Updates) or by downloading the patched version directly from the vendor. … Detailed patch versions, workarounds, and compensating controls in full report.
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Recommended ActionAI

Within 24 hours: Inventory all WordPress installations using Rascals Meloo theme and identify current version numbers. …

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CVE-2026-25358 vulnerability details – vuln.today
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