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TrustedSite Plugin CVE-2026-81771

| EUVDEUVD-2026-69929 HIGH
Cross-site Scripting (XSS) (CWE-79)
2026-09-02 Patchstack GHSA-j962-73j3-5jjg
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-reachable reflected XSS with no auth required; UI:R for victim click; S:C for browser-context escape; A:N as XSS does not typically cause availability impact.

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:L/VI:L/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
Sep 02, 2026 - 12:40 vuln.today
CVE Published
Sep 02, 2026 - 11:37 cve.org
HIGH 7.1

DescriptionCVE.org

Unauthenticated Cross Site Scripting (XSS) in TrustedSite <= 1.2.5 versions.

AnalysisAI

Unauthenticated cross-site scripting in the TrustedSite WordPress plugin (versions <=1.2.5) allows remote attackers without any credentials to inject arbitrary JavaScript into pages served to site visitors or administrators. The CVSS vector designates a scope change (S:C), meaning the injected script executes in the victim's browser context and can affect resources beyond the vulnerable WordPress installation itself - including session cookies and browser-stored credentials. …

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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 no authentication - the CVSS vector confirms PR:N, making this reachable by any remote unauthenticated attacker. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 3.1 score of 7.1 (AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L) reflects a reflected XSS pattern: network-reachable, low complexity, no authentication, but requiring victim interaction (UI:R) to trigger - meaning the attacker must socially engineer a target into clicking a crafted link. … 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 TrustedSite plugin to the version confirmed as patched by Patchstack via the advisory at https://patchstack.com/database/wordpress/plugin/trustedsite/vulnerability/wordpress-trustedsite-plugin-1-2-5-cross-site-scripting-xss-vulnerability?_s_id=cve. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours, audit your WordPress deployments to identify any installations of the TrustedSite plugin and determine the installed version; if version 1.2.5 or earlier is found, immediately disable and deactivate the plugin to eliminate the attack surface. …

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CVE-2026-81771 vulnerability details – vuln.today

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