EUVD-2026-65274
GHSA-7rx7-mpjh-8vjx
Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Subscriber authentication required (PR:L); integrity rated High because the attacker has full, unrestricted control over which posts to modify and what content and authorship to write across the entire site, exceeding NVD's Low rating.
Primary rating from Vendor (Wordfence).
CVSS VectorVendor: Wordfence
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Lifecycle Timeline
2DescriptionCVE.org
The FundEngine - Donation and Crowdfunding Platform plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 1.8.1. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with subscriber-level access and above, to modify arbitrary posts and pages - overwriting title and content, and seizing ownership by supplying an attacker-controlled post_author integer that bypasses wp_kses_post sanitization. The wp_rest nonce required by the handler is trivially obtainable by any logged-in user via /wp-admin/admin-ajax.php?action=rest-nonce and therefore does not constitute an authorization barrier.
AnalysisAI
Authorization bypass in the FundEngine WordPress donation and crowdfunding plugin (all versions through 1.8.1) allows authenticated subscribers to overwrite the title, body, and author field of any post or page on the affected site. The vulnerable handler in apps/content.php accepts an attacker-supplied post_author integer without verifying the caller's rights over the target post, and the wp_rest nonce that nominally gates the endpoint is freely retrievable by any logged-in user from /wp-admin/admin-ajax.php?action=rest-nonce, eliminating it as a meaningful access control. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires an authenticated WordPress account at subscriber level or above - the attacker must either leverage open user registration (enabled under Settings → General → Membership) or have obtained valid credentials by other means. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The NVD CVSS vector (AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N, score 4.3) reflects a low-complexity network attack requiring only subscriber-level authentication with no user interaction needed. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker self-registers as a subscriber on a WordPress site running FundEngine 1.8.1 or earlier, then calls /wp-admin/admin-ajax.php?action=rest-nonce to obtain a valid wp_rest nonce with no elevated privileges required. Using that nonce, the attacker submits a crafted request to the vulnerable handler in content.php, specifying an arbitrary target post ID and an attacker-controlled post_author integer, thereby overwriting a live fundraising campaign page's content and transferring its ownership to a fraudulent account - potentially redirecting donor activity. |
| Remediation | Update the FundEngine plugin to the latest available version via the WordPress plugin dashboard, as an upstream patch changeset (revision 3656562) has been committed to the plugin's Trac repository (https://plugins.trac.wordpress.org/changeset?reponame=&old=3656562%40wp-fundraising-donation&new=3656562%40wp-fundraising-donation); however, the exact released patched version number is not independently confirmed from available data - verify the installed version in the WordPress admin panel after updating. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-862 – Missing Authorization
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External POC / Exploit Code
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