EUVD-2026-70576
GHSA-w7vh-xxx8-w9pq
Severity by source
AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
XSS impact reaches admin browser (S:C); unauthenticated injection (PR:N); but a privileged user must load the page (UI:R), correcting vendor's UI:N.
Primary rating from Vendor (Patchstack).
CVSS VectorVendor: Patchstack
Lifecycle Timeline
2DescriptionCVE.org
Unauthenticated Cross Site Scripting (XSS) in EWWW Image Optimizer <= 8.7.6 versions.
AnalysisAI
Unauthenticated Cross-Site Scripting in the EWWW Image Optimizer WordPress plugin (versions ≤ 8.7.6) enables remote attackers to inject arbitrary JavaScript into pages served to authenticated site visitors, including administrators. With Scope:Changed in the provided CVSS vector, successful exploitation can break out of the plugin's security boundary - allowing session token theft, admin-level action hijacking, or persistent backdoor injection via malicious script execution in a privileged browser context. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires two phases: first, an unauthenticated remote attacker must be able to deliver a crafted input to the vulnerable EWWW Image Optimizer parameter (no authentication required per PR:N). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The vendor CVSS of 7.2 (AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N) requires scrutiny. … 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 EWWW Image Optimizer to version 8.7.7 or later, which is implied as the fix boundary by the ≤8.7.6 affected range reported by Patchstack; however, the exact patched release version has not been independently confirmed from vendor release notes. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: Disable or uninstall EWWW Image Optimizer plugin (versions ≤ 8.7.6) from all WordPress installations and identify alternative image optimization solutions. …
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External POC / Exploit Code
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