EUVD-2026-63317
GHSA-6jf9-w78j-p5qg
Severity by source
AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Network-reachable upload needs only a Subscriber account (PR:L) and no interaction; unrestricted upload yields webshell RCE, compromising the host beyond the theme, so S:C with full C/I/A impact.
Primary rating from Vendor (Patchstack).
CVSS VectorVendor: Patchstack
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Lifecycle Timeline
2DescriptionCVE.org
Subscriber Arbitrary File Upload in Smart Cleaning <= 4.8.6 versions.
AnalysisAI
Arbitrary file upload in the Smart Cleaning WordPress theme (by themagnifico52) through version 4.8.6 lets a low-privileged authenticated user (Subscriber role) upload files of dangerous types, enabling likely remote code execution on the hosting server. Rated CVSS 9.9 with a scope change, the flaw is exploitable over the network with low complexity and no user interaction, though it requires a valid low-tier account. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires a valid authenticated WordPress account at the low-privilege Subscriber level (CVSS PR:L) and that the site has the vulnerable Smart Cleaning theme <= 4.8.6 installed and active. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The signals are largely consistent and point to a high-priority issue: the CVSS 3.1 vector (AV:N/AC:L/PR:L/UI:N/S:C, C:H/I:H/A:H, score 9.9) indicates a network-reachable, low-complexity flaw needing only minimal privileges, with full confidentiality/integrity/availability impact and scope change consistent with server takeover. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker registers or obtains a Subscriber account on a WordPress site running Smart Cleaning <= 4.8.6, then submits a crafted request to the theme's file-upload feature to upload a PHP webshell instead of a permitted file type. Because the network vector is low-complexity with no user interaction required, the attacker then requests the uploaded file's URL to execute commands and take control of the server. … |
| Remediation | No vendor-released patch version is identified in the available data, so confirm the latest release directly with the theme author (themagnifico52) or via the Patchstack advisory at https://patchstack.com/database/wordpress/theme/smart-cleaning/vulnerability/wordpress-smart-cleaning-theme-4-8-6-arbitrary-file-upload-vulnerability and upgrade to any version above 4.8.6 once published. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory all WordPress installations to identify those using Smart Cleaning theme version 4.8.6 or earlier; immediately disable the theme or restrict Subscriber-level user account creation to prevent exploitation. …
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Same technique File Upload
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External POC / Exploit Code
Leaving vuln.today