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JobSearch CVE-2026-84834

| EUVDEUVD-2026-70565 CRITICAL
Deserialization of Untrusted Data (CWE-502)
2026-09-03 Patchstack GHSA-h3qq-429h-cfp2
9.8
CVSS 3.1 · Vendor: Patchstack
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Severity by source

Vendor (Patchstack) PRIMARY
9.8 CRITICAL
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
vuln.today AI
9.8 CRITICAL

Unauthenticated network-reachable deserialization with low complexity; C/I/A:H retained as the realistic ceiling when a POP gadget chain is reachable, matching the object-injection class.

3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Primary rating from Vendor (Patchstack).

CVSS VectorVendor: Patchstack

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

2
Analysis Generated
Sep 03, 2026 - 17:14 vuln.today
CVE Published
Sep 03, 2026 - 16:31 cve.org
CRITICAL 9.8

DescriptionCVE.org

Unauthenticated PHP Object Injection in JobSearch <= 3.2.0 versions.

AnalysisAI

PHP Object Injection in the eyecix JobSearch (wp-jobsearch) WordPress plugin allows remote attackers to inject crafted serialized PHP objects that are deserialized by the plugin, affecting all versions up to and including 3.2.0. Because the vector is unauthenticated (PR:N), any visitor can supply malicious input; if a suitable POP gadget chain is present in the plugin, WordPress core, or another installed plugin, this can escalate to arbitrary file operations, SQL injection, or remote code execution. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
technique details hidden
Delivery
technique details hidden
Exploit
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Execution
technique details hidden
Impact
technique details hidden

Vulnerability AssessmentAI

Exploitation Exploitation requires reaching a JobSearch (wp-jobsearch) endpoint that deserializes attacker-supplied input on a site running plugin version 3.2.0 or earlier; per CVSS AV:N/AC:L/PR:N/UI:N no authentication or user interaction is needed against a default install. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The provided CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H = 9.8) reflects a worst-case where a reachable gadget chain yields full compromise; the unauthenticated network vector and low complexity make it broadly reachable, which is why a mid-sized municipal IT team running this plugin should treat it as urgent rather than deferring it. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation Upgrade the JobSearch plugin to a release later than 3.2.0 once the vendor publishes a fix; no exact patched version is confirmed in the provided data, so verify the current version against the Patchstack advisory (https://patchstack.com/database/wordpress/plugin/wp-jobsearch/vulnerability/wordpress-jobsearch-plugin-3-2-0-php-object-injection-vulnerability) before relying on an upgrade. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours: Disable or remove the wp-jobsearch plugin immediately on all WordPress installations currently running version 3.2.0 or earlier, and review web server and WordPress logs for suspicious serialized-object patterns or exploitation attempts. …

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CVE-2026-84834 vulnerability details – vuln.today

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