EUVD-2026-64223
GHSA-879w-x4vj-2mvp
Severity by source
AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
S:C is warranted because admin-context XSS enables full WordPress site takeover, crossing the security boundary from plugin to host CMS; all other metrics align with unauthenticated network-accessible stored XSS requiring victim page load.
Primary rating from Vendor (wpscan).
CVSS VectorVendor: wpscan
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Lifecycle Timeline
5DescriptionCVE.org
The Slider Hero with Video Background, Animation WordPress plugin before 9.1.3 does not have authorisation and nonce checks on two of its request handlers, and does not escape a stored setting before outputting it, allowing unauthenticated users to store malicious JavaScript which will be executed in the context of an administrator viewing the Slider Hero with Video Background, Animation WordPress plugin before 9.1.3's admin area, as well as any visitor of a page embedding a slider.
AnalysisAI
Stored cross-site scripting in the Slider Hero with Video Background, Animation WordPress plugin (versions before 9.1.3) allows unauthenticated remote attackers to inject persistent malicious JavaScript by exploiting missing authorization and nonce checks on two of the plugin's request handlers. The injected payload executes in two distinct contexts: within the WordPress admin area when an administrator views the plugin's settings, and on the public-facing frontend for any visitor loading a page that embeds a slider. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | No authentication is required (CVSS PR:N confirmed). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The NVD-assigned CVSS 3.1 score of 8.8 (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H) reflects the low attack complexity and lack of authentication requirement, tempered by the need for user interaction. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An unauthenticated attacker sends a crafted HTTP POST request directly to the plugin's unprotected AJAX handler, supplying a JavaScript payload (e.g., a cookie-stealing script or admin account creation routine) as a slider setting value. No account or session cookie is required. … |
| Remediation | Update the Slider Hero with Video Background, Animation plugin to version 9.1.3 or later, which resolves both the missing authorization/nonce checks and the output escaping deficiency. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, audit all WordPress installations for Slider Hero with Video Background plugin and document instances running versions prior to 9.1.3; immediately disable the plugin on affected sites pending remediation. …
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External POC / Exploit Code
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