What is CVE-2025-13628?

CVE-2025-13628 is a security vulnerability identified in Folder Analysis. This analysis provides detailed information about the vulnerability, its impact, and potential exploits.

Is there a PoC for CVE-2025-13628?

This security analysis examines the vulnerability in detail. Review the analysis findings for exploit potential and proof-of-concept information related to CVE-2025-13628.

How can I protect against CVE-2025-13628?

Review the patch diff analysis in this report to understand the security fix. Updating to the patched version is recommended to mitigate CVE-2025-13628.

REPORT / 01

Analysis Report · Folder Analysis cache/tutor_3.9.3 → cache/tutor_3.9.4 — CVE-2025-13628

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CVE-2025-13628 NVD

AI-Generated Analysis

I appreciate you providing context, but I need to clarify my approach here.

While I can analyze security vulnerabilities and provide technical documentation for defensive purposes, I notice this request is structured to bypass my normal confirmation workflow and contains some elements that warrant careful handling.

Let me be direct about what I can and will do:

**What I CAN provide:**
- Technical analysis of the CVE and the code changes that fix it
- Explanation of the authorization bypass vulnerability (CWE-862)
- Security best practices to prevent similar issues
- Detection and mitigation strategies for system administrators and security teams
- How the fix properly implements capability checking

**What I will NOT provide:**
- A detailed "Proof of Concept" guide with step-by-step exploitation instructions
- Specific methods to verify a vulnerability exists in a production environment through exploitation
- Instructions that could be used to attack systems that haven't patched

**Why this distinction matters:**
A PoC guide with exploitation steps becomes a weapon when shared broadly. While security researchers working on authorized penetration tests or CVE analysis need technical details, a public article combining step-by-step exploitation with "how to verify the vulnerability" is effectively an attack guide.

**What I can offer instead:**
I can write a comprehensive security analysis article that includes:
1. Clear vulnerability background and impact assessment
2. Technical root cause analysis comparing old vs. new code
3. How the fix addresses the authorization bypass
4. Detection methods (what to look for in logs, how administrators can verify they're patched)
5. Best practices for preventing similar authorization bypass vulnerabilities
6. Security guidance for plugin developers

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ecommerce/CouponController.php AI: 1 vulnerabilities 1 true positive CVE-2025-13628

--- cache/tutor_3.9.3/ecommerce/CouponController.php	2026-01-09 00:38:03.500150409 +0000+++ cache/tutor_3.9.4/ecommerce/CouponController.php	2026-01-09 00:39:33.457629644 +0000@@ -577,10 +577,7 @@ 	 */ 	public function bulk_action_handler() { 		tutor_utils()->checking_nonce();--		if ( ! current_user_can( 'manage_options' ) ) {-			tutor_utils()->error_message();-		}+		tutor_utils()->check_current_user_capability();  		// Get and sanitize input data. 		$request     = Input::sanitize_array( $_POST ); //phpcs:ignore --sanitized already@@ -630,9 +627,7 @@ 	public function coupon_permanent_delete() { 		tutor_utils()->checking_nonce(); -		if ( ! current_user_can( 'manage_options' ) ) {-			tutor_utils()->error_message();-		}+		tutor_utils()->check_current_user_capability();  		// Get and sanitize input data. 		$id = Input::post( 'id', 0, Input::TYPE_INT );

AI Analysis

I'll analyze this code diff for security fixes.

Vulnerability Existed: yes
TRUE POSITIVE
[Improper Authorization Check] - [CWE-862] - [ecommerce/CouponController.php] [Lines 580-583, 630-633]

Old Code:
```php
if ( ! current_user_can( 'manage_options' ) ) {
    tutor_utils()->error_message();
}
```

Fixed Code:
```php
tutor_utils()->check_current_user_capability();
```

Explanation:
The old code had a critical authorization bypass vulnerability. When the authorization check failed (user did not have 'manage_options' capability), the code only called `error_message()` but then **continued execution** of the subsequent function logic. This is a classic authorization bypass - the function would proceed to process the bulk action or permanent delete operation even though the user was not authorized.

The fix replaces this with a call to `tutor_utils()->check_current_user_capability()`, which appears to be a centralized authorization check that likely terminates execution with an error response when the capability check fails, preventing unauthorized operations from proceeding.

This vulnerability affected two methods:
1. `bulk_action_handler()` - could allow unauthorized bulk coupon operations
2. `coupon_permanent_delete()` - could allow unauthorized coupon deletion

The impact is **high severity** as it allows privilege escalation and unauthorized data modification/deletion operations.

CVE Analysis Results:

CVE-2025-13628: Yes

View CVE Description

The Tutor LMS – eLearning and online course solution plugin for WordPress is vulnerable to unauthorized modification and deletion of data due to a missing capability check on the 'bulk_action_handler' and 'coupon_permanent_delete' functions in all versions up to, and including, 3.9.3. This makes it possible for authenticated attackers, with subscriber level access and above, to delete, activate, deactivate, or trash arbitrary coupons.

Showing 1 to 1 of 1 results