EUVD-2026-43117
GHSA-wcfj-4phh-x3w3
Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Network-reachable via HTTP POST, no complexity, subscriber auth required (PR:L), read-only file disclosure with no integrity or availability impact.
Primary rating from Vendor (wordfence).
CVSS VectorVendor: wordfence
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Lifecycle Timeline
2DescriptionCVE.org
The UnderConstructionPage PRO plugin for WordPress is vulnerable to Arbitrary File Read in all versions up to, and including, 5.76. This is due to the plugin accepting arbitrary local file paths in the template_thumbnail parameter and copying their contents into a publicly accessible uploads file. This makes it possible for authenticated attackers, with Subscriber-level access and above, to read arbitrary files on the server, which can contain sensitive information.
AnalysisAI
Arbitrary file read in the UnderConstructionPage PRO WordPress plugin (≤ 5.76) exposes sensitive server files to any authenticated subscriber-level user. The plugin's template_thumbnail parameter accepts unsanitized local file paths and copies their contents into the publicly accessible uploads directory, making the exfiltrated data retrievable by unauthenticated third parties after the fact. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires the attacker to hold a valid WordPress account at Subscriber level or higher - this is the primary limiting factor. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 score of 6.5 (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N) accurately reflects the threat profile: network-exploitable with no attack complexity but requiring at minimum a subscriber-level account, yielding high confidentiality impact with no integrity or availability consequence. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker registers a free subscriber account on a WordPress site running the vulnerable plugin, then submits a crafted request to the plugin endpoint with template_thumbnail set to a path-traversal string targeting wp-config.php (e.g., ../../../../wp-config.php). The plugin copies the file contents into a predictably named file in the uploads directory, which the attacker then retrieves via a direct HTTP GET request, obtaining the database credentials and secret keys from the configuration file. … |
| Remediation | Update the UnderConstructionPage PRO plugin to the version released after 5.76 as documented in the vendor changelog at https://underconstructionpage.com/changelog/; the exact patched release version was not independently confirmed from the provided references (upstream fix exists per vendor advisory). … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-22 – Path Traversal
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External POC / Exploit Code
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