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Social Media & Share Icons CVE-2026-66623

| EUVDEUVD-2026-64832 HIGH
Cross-site Scripting (XSS) (CWE-79)
2026-08-24 Patchstack GHSA-j734-fqh8-vhv9
7.1
CVSS 3.1 · Vendor: Patchstack
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Severity by source

Vendor (Patchstack) PRIMARY
7.1 HIGH
AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
vuln.today AI
6.1 MEDIUM

Network-delivered unauthenticated XSS with scope change justifies AV:N, PR:N, S:C, UI:R; availability set to N as XSS alone does not cause denial of service.

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

Primary rating from Vendor (Patchstack).

CVSS VectorVendor: Patchstack

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

Lifecycle Timeline

2
Analysis Generated
Aug 24, 2026 - 12:22 vuln.today
CVE Published
Aug 24, 2026 - 11:39 cve.org
HIGH 7.1

DescriptionCVE.org

Unauthenticated Cross Site Scripting (XSS) in Social Media & Share Icons <= 2.9.9 versions.

AnalysisAI

Unauthenticated cross-site scripting in the Social Media & Share Icons WordPress plugin (by Inisev, versions ≤ 2.9.9) allows remote attackers to inject arbitrary JavaScript that executes in the context of a victim's browser when they visit an affected page. The CVSS scope change (S:C) indicates injected scripts can breach the plugin's own security boundary, enabling session hijacking, credential theft, or page defacement against site visitors and administrators. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
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Delivery
technique details hidden
Exploit
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Execution
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Persist
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Impact
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Vulnerability AssessmentAI

Exploitation The CVSS vector (PR:N) confirms no authentication is required to deliver the malicious payload to the server. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 3.1 score of 7.1 (High) is driven by AV:N/AC:L/PR:N (network-accessible, low complexity, no authentication) combined with scope change, placing this in a realistic exploitation category. … 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 Social Media & Share Icons plugin to a version beyond 2.9.9 via the WordPress admin dashboard (Plugins → Updates) or by retrieving the latest release from the WordPress plugin repository. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours, inventory all WordPress installations to identify and document sites running Social Media & Share Icons plugin by Inisev version 2.9.9 or earlier. …

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

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CVE-2026-66623 vulnerability details – vuln.today

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