EUVD-2026-63293
GHSA-jhjw-h99h-cgrf
Severity by source
AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
Unauthenticated network injection (AV:N, PR:N) with low complexity; scope change to victim browser (S:C, UI:R); limited C/I/A reflects constrained XSS impact absent full admin takeover.
Primary rating from Vendor (Patchstack).
CVSS VectorVendor: Patchstack
Lifecycle Timeline
2DescriptionCVE.org
Unauthenticated Cross Site Scripting (XSS) in SmartSMTP <= 1.2.0 versions.
AnalysisAI
Unauthenticated cross-site scripting in the SmartSMTP WordPress plugin (versions 1.2.0 and below) allows a remote, unauthenticated attacker to inject arbitrary JavaScript that executes in the browser of any authenticated user who views the malicious content. The scope change confirmed by the CVSS vector (S:C) means impact extends beyond the injecting session to other users, including administrators. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires the SmartSMTP plugin (version 1.2.0 or earlier) to be installed and active on a WordPress site. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 7.1 score reflects meaningful real-world risk: the attack vector is network (AV:N), complexity is low (AC:L), and no authentication is required (PR:N), meaning any internet-reachable WordPress installation running this plugin is a potential target. … 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 | Site operators should update the SmartSMTP plugin to a version beyond 1.2.0 if a patched release is available in the WordPress plugin repository; the Patchstack advisory at https://patchstack.com/database/wordpress/plugin/smart-smtp/vulnerability/wordpress-smartsmtp-plugin-1-2-0-cross-site-scripting-xss-vulnerability?_s_id=cve should be consulted for the confirmed fixed version, as no specific patch version was included in the available intelligence data. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: inventory all WordPress installations using SmartSMTP plugin v1.2.0 or below; immediately disable the plugin and deploy an alternative SMTP solution. …
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External POC / Exploit Code
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