EUVD-2026-41284
GHSA-jv93-qw89-pf3m
Severity by source
AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
Unauthenticated network injection (PR:N/AV:N) requiring victim interaction (UI:R); XSS crosses into the browser context (S:C) with limited session-level C/I/A impact.
Primary rating from Vendor (Patchstack).
CVSS VectorVendor: Patchstack
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
Lifecycle Timeline
1DescriptionCVE.org
Unauthenticated Cross Site Scripting (XSS) in Optimole <= 4.2.7 versions.
AnalysisAI
Stored/reflected Cross-Site Scripting in the Optimole WordPress image-optimization plugin (versions 4.2.7 and earlier) lets remote unauthenticated attackers inject arbitrary JavaScript that executes in the browser of any user who views the affected content. Reported by Patchstack and classified CWE-79 with a CVSS 3.1 score of 7.1, the flaw carries a scope-changing impact (S:C) but requires victim interaction (UI:R). …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires a target site running Optimole version 4.2.7 or earlier and, per the CVSS UI:R metric, a victim who is induced to interact with attacker-supplied content (click a crafted link or load a page carrying the injected payload). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L = 7.1 High) indicates network-reachable, low-complexity, unauthenticated exploitation, but success depends on user interaction (UI:R), which meaningfully lowers real-world likelihood versus a no-interaction flaw. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker crafts a URL or input targeting an Optimole-handled parameter containing a malicious JavaScript payload, then lures a logged-in administrator or visitor to open the link or view the affected page. When the page renders the unsanitized input, the script executes in the victim's browser under the WordPress origin, enabling session token theft, forged admin actions, or content injection. … |
| Remediation | Upgrade Optimole to a release newer than 4.2.7; the exact fixed version was not included in the provided data, so treat the patched build as unconfirmed and verify it against the vendor changelog before deploying (No vendor-released patch version identified at time of analysis). … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: Identify all WordPress instances using Optimole plugin and determine current installed versions; assess impact across production and customer-facing environments. …
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Same weakness CWE-79 – Cross-site Scripting (XSS)
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External POC / Exploit Code
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