EUVD-2026-39745
GHSA-xm6v-vxpj-38gq
Severity by source
AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L
Contributor-level authentication (PR:L), victim interaction required to trigger payload (UI:R), and scope change (S:C) reflect cross-session impact on administrator-level users.
Primary rating from Vendor (patchstack).
CVSS VectorVendor: patchstack
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L
Lifecycle Timeline
1DescriptionCVE.org
Contributor Cross Site Scripting (XSS) in StatCounter <= 2.1.1 versions.
AnalysisAI
Cross-site scripting in the StatCounter WordPress plugin (versions up to and including 2.1.1) allows authenticated Contributor-level users to inject persistent malicious scripts into content that executes in the browser context of higher-privileged users who view that content. The CVSS scope change (S:C) indicates the payload can reach sessions beyond the attacker's own - most critically Administrator sessions - enabling session hijacking, credential theft, or unauthorized administrative actions such as creating backdoor accounts. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires the attacker to hold a valid WordPress account with at minimum Contributor-level privileges (confirmed by PR:L in the CVSS vector) - this role must be explicitly assigned by an administrator or enabled through open registration. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The NVD CVSS 6.5 Medium score reflects a meaningful authentication barrier: exploitation requires a WordPress account with at least Contributor-level privileges (PR:L), which is not the default public-facing attack surface. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker registers or compromises a Contributor-level WordPress account on a site running StatCounter <= 2.1.1, then crafts a post or page embedding a JavaScript payload in an input field that the plugin fails to sanitize - such as a plugin settings field or shortcode parameter. When a site Administrator reviews, edits, or approves the content, the script silently executes in the administrator's browser, exfiltrating their session cookie to an attacker-controlled server and enabling full administrative takeover of the WordPress site. |
| Remediation | Consult the Patchstack advisory at https://patchstack.com/database/wordpress/plugin/official-statcounter-plugin-for-wordpress/vulnerability/wordpress-statcounter-plugin-2-1-1-cross-site-scripting-xss-vulnerability for the latest patched release. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-79 – Cross-site Scripting (XSS)
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External POC / Exploit Code
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