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Classified Listing CVE-2026-16281

| EUVDEUVD-2026-70900 HIGH
Authorization Bypass Through User-Controlled Key (CWE-639)
2026-09-04 WPScan GHSA-p9w8-7wph-h4x9
7.1
CVSS 3.1 · Vendor: WPScan
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Severity by source

Vendor (WPScan) PRIMARY
7.1 HIGH
AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L
vuln.today AI
7.1 HIGH

Subscriber-level account sufficient (PR:L); network-accessible AJAX endpoint (AV:N); no confidentiality leak; integrity high from cross-user media manipulation; availability low from attachment deletion only.

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

Primary rating from Vendor (WPScan).

CVSS VectorVendor: WPScan

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

Lifecycle Timeline

7
POC Analysis Generated
Sep 04, 2026 - 15:20 vuln.today
Metadata Corrected
Sep 04, 2026 - 13:40 vuln.today
tag: Authentication Bypass removed
Analysis Generated
Sep 04, 2026 - 13:24 vuln.today
CVSS changed
Sep 04, 2026 - 13:22 NVD
7.1 (HIGH)
Patch available
Sep 04, 2026 - 08:01 EUVD
CVE Published
Sep 04, 2026 - 06:00 cve.org
UNKNOWN (no severity yet)
CVE Published
Sep 04, 2026 - 06:00 cve.org
HIGH 7.1

DescriptionCVE.org

The Classified Listing WordPress plugin before 6.1.1 does not verify that the caller owns or can edit the target listing before its AI image-editing AJAX action deletes or attaches media, allowing any authenticated user, including a subscriber, to permanently delete attachments from, and attach files to, any listing owned by another user.

AnalysisAI

Broken object-level authorization in the Classified Listing WordPress plugin (versions 5.3.0 through pre-6.1.1) allows any authenticated subscriber-level user to permanently delete media attachments from, or attach arbitrary files to, listings owned by other users by invoking the plugin's AI image-editing AJAX action with a victim's listing ID. The handler performs no ownership or capability verification before acting on the supplied identifier (CWE-639), meaning the lowest default WordPress role is sufficient to tamper with any listing on the platform. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
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Delivery
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Exploit
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Execution
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Persist
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Impact
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Vulnerability AssessmentAI

Exploitation Exploitation requires a valid WordPress account at subscriber level or above - the lowest authenticated role that WordPress assigns by default. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The provided CVSS 3.1 vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L (score 7.1) is well-calibrated: the attack is network-reachable, requires no complexity, and a subscriber account is the only credential needed. … 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 Update the Classified Listing WordPress plugin to version 6.1.1 or later, which introduces the missing ownership and capability checks in the AI image-editing AJAX handler. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours, identify all WordPress installations using Classified Listing plugin and determine which versions are deployed-prioritize instances in versions 5.3.0 through 6.1.0. …

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CVE-2026-16281 vulnerability details – vuln.today

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