LearnPress – Backup & Migration Tool <= 4.1.4 - Authenticated (Administrator+) PHP Object Injection via WXR XML File Upload
Summary
| CVE | CVE-2026-7566 |
|---|---|
| State | PUBLISHED |
| Assigner | Wordfence |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-06-06 04:17:39 UTC |
| Updated | 2026-06-08 14:57:14 UTC |
| Description | The LearnPress – Backup & Migration Tool plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 4.1.4 via deserialization of untrusted input . This makes it possible for authenticated attackers, with administrator-level access and above, to inject a PHP Object. No known POP chain is present in the vulnerable software, which means this vulnerability has no impact unless another plugin or theme containing a POP chain is installed on the site. If a POP chain is present via an additional plugin or theme installed on the target system, it may allow the attacker to perform actions like delete arbitrary files, retrieve sensitive data, or execute code depending on the POP chain present. |
Risk And Classification
Primary CVSS: v3.1 6.6 MEDIUM from [email protected]
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
EPSS: 0.001970000 probability, percentile 0.417260000 (date 2026-06-14)
Problem Types: CWE-502 | CWE-502 CWE-502 Deserialization of Untrusted Data
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Primary | 6.6 | MEDIUM | CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H |
| 3.1 | CNA | DECLARED | 6.6 | MEDIUM | CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H |
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
HighPrivileges Required
HighUser Interaction
NoneScope
UnchangedConfidentiality
HighIntegrity
HighAvailability
HighCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Thimpress | LearnPress Backup Migration Tool | affected 4.1.4 semver | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| plugins.trac.wordpress.org/browser/learnpress-import-export/tags/4.1.4/inc/admin/provide... | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/learnpress-import-export/trunk/inc/parsers.php | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/learnpress-import-export/trunk/inc/admin/providers/le... | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/learnpress-import-export/tags/4.1.4/inc/parsers.php | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/learnpress-import-export/tags/4.1.5/inc/functions.php | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/learnpress-import-export/tags/4.1.1/inc/admin/provide... | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/learnpress-import-export/tags/4.1.1/inc/parsers.php | [email protected] | plugins.trac.wordpress.org | |
| www.wordfence.com/threat-intel/vulnerabilities/id/2f796373-7116-4fd3-9d53-5f520... | [email protected] | www.wordfence.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
CNA: Wannes Verwimp (en)
Additional Advisory Data
| Source | Time | Event |
|---|---|---|
| CNA | 2026-04-30T20:44:36.000Z | Vendor Notified |
| CNA | 2026-06-05T13:35:10.000Z | Disclosed |
There are currently no legacy QID mappings associated with this CVE.