Pubjet | پابجت <= 5.4.8 - Authenticated (Subscriber+) Privilege Escalation to 'check-token' AJAX Action
Summary
| CVE | CVE-2026-103479 |
|---|---|
| State | PUBLISHED |
| Assigner | Wordfence |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-11-06 12:17:15 UTC |
| Updated | 2026-11-06 18:17:38 UTC |
| Description | The Pubjet | پابجت plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 5.4.8. This is due to the `checkToken()` AJAX handler — registered under `wp_ajax_pubjet-check-token` — performing no capability check and no nonce verification before unconditionally writing the attacker-supplied `token` GET parameter directly into the site-wide `pubjet_settings` option via `pubjet_update_setting()`, prior to any remote validation. This makes it possible for authenticated attackers, with Subscriber-level access and above, to overwrite the plugin's stored REST API credential with an attacker-chosen value, immediately elevating their effective privileges to those of an authorized Pubjet API client and enabling them to invoke otherwise-restricted endpoints — `createReportage`, `updateReportage`, `deleteReportage`, `toggleCopyright`, and `createBacklink` — to create, modify, and delete arbitrary reportage posts and manipulate plugin state that Subscribers cannot normally access. The privilege escalation is self-reinforcing: because `RestApi::isTokenValid()` authenticates solely by comparing the incoming `Authorization` header against the value returned by `pubjet_token()`, which reads from the same option the unprotected handler writes to, the attacker-planted token is trusted as legitimate on all subsequent requests. |
Risk And Classification
Primary CVSS: v3.1 7.6 HIGH from [email protected]
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L
Problem Types: CWE-269 | CWE-269 CWE-269 Improper Privilege Management
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Secondary | 7.6 | HIGH | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L |
| 3.1 | CNA | DECLARED | 7.6 | HIGH | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L |
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
LowUser Interaction
NoneScope
UnchangedConfidentiality
LowIntegrity
HighAvailability
LowCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L
Vendor Declared Affected Products
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| www.wordfence.com/threat-intel/vulnerabilities/id/0391145a-2707-4639-80d0-a8a98... | [email protected] | www.wordfence.com | |
| plugins.trac.wordpress.org/browser/pubjet/tags/5.4.8/includes/RestApi.php | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/pubjet/tags/5.4.8/includes/Ajax.php | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/pubjet/tags/5.4.8/includes/Ajax.php | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/pubjet/tags/5.4.8/includes/Ajax.php | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/pubjet/tags/5.4.8/includes/RestApi.php | [email protected] | plugins.trac.wordpress.org | |
| 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: Wordfence PRISM (en)
Additional Advisory Data
| Source | Time | Event |
|---|---|---|
| CNA | 2026-11-05T22:00:19.000Z | Disclosed |
There are currently no legacy QID mappings associated with this CVE.