CVE-2025-6286: COVID19 Testing Management System Open Redirect

CVE-2025-6286 Overview

CVE-2025-6286 is an open redirect vulnerability in PHPGurukul COVID19 Testing Management System 2021. The flaw resides in the /search-report-result.php script, where the q parameter is not properly validated before being used in a redirect. An authenticated remote attacker can craft a malicious URL that redirects victims to an attacker-controlled destination. The issue is tracked under CWE-601: URL Redirection to Untrusted Site. Public disclosure includes technical details on VulDB #313290.

Critical Impact
Attackers can abuse the trusted application domain to redirect users to phishing or malware distribution sites, facilitating credential theft and social engineering campaigns.

Affected Products

PHPGurukul COVID19 Testing Management System 2021

Discovery Timeline

2025-06-19 - CVE-2025-6286 published to NVD
2026-06-17 - Last updated in NVD database

Technical Details for CVE-2025-6286

Vulnerability Analysis

The vulnerability affects the /search-report-result.php endpoint in the PHPGurukul COVID19 Testing Management System. The application accepts a user-supplied value through the q request parameter and uses it to construct a redirect destination without validating that the target belongs to a trusted domain.

Because the redirect executes from a legitimate application URL, victims are more likely to trust the initial link. This behavior makes the flaw useful in phishing chains, malware delivery, and OAuth or session token theft workflows.

Exploitation requires network access to the application and low privileges. User interaction is required, since the victim must click or follow the crafted link. Confidentiality and availability are not directly affected, but integrity is impacted through user deception.

Root Cause

The root cause is missing validation of untrusted input used in a redirect destination, consistent with [CWE-601]. The q parameter flows into the redirect logic without an allowlist check or same-origin enforcement, allowing arbitrary external URLs to be supplied.

Attack Vector

An attacker constructs a URL of the form https://victim-host/search-report-result.php?q=https://attacker.example/phish and delivers it through email, chat, or a compromised page. When a logged-in user follows the link, the vulnerable script issues an HTTP redirect to the attacker-controlled destination. The attacker site can then mimic the original application to harvest credentials or deliver malicious payloads.

No verified proof-of-concept code is published in the enriched data. See the VulDB advisory entry for further technical detail.

Detection Methods for CVE-2025-6286

Indicators of Compromise

Web server access logs containing requests to /search-report-result.php with a q parameter value beginning with http://, https://, or // pointing to an external host.
Referer headers on outbound traffic indicating users were redirected from the COVID19 Testing Management System to unfamiliar domains.
Clusters of identical or templated URLs targeting the q parameter delivered through email or messaging platforms.

Detection Strategies

Parse web server logs for the search-report-result.php endpoint and flag q values that resolve to hosts outside the application's own domain allowlist.
Deploy web application firewall (WAF) rules that inspect redirect parameters and block values containing external schemes or protocol-relative URLs.
Correlate email gateway telemetry with URLs pointing to the vulnerable endpoint to identify active phishing campaigns.

Monitoring Recommendations

Alert on outbound HTTP 301, 302, and 307 responses from the application when the Location header targets an unapproved domain.
Track authenticated user sessions that trigger redirects immediately after visiting /search-report-result.php for anomaly review.
Monitor brand protection feeds for lookalike domains referenced through the vulnerable parameter.

How to Mitigate CVE-2025-6286

Immediate Actions Required

Restrict access to /search-report-result.php through network controls or authentication policy until a fix is applied.
Deploy WAF signatures that reject requests where the q parameter contains an absolute URL or protocol-relative prefix.
Educate users about phishing risk associated with links originating from the application host.

Patch Information

No vendor patch is referenced in the available advisory data. Administrators should monitor the PHPGurukul website for updates and apply any security release as soon as it becomes available.

Workarounds

Modify search-report-result.php to validate the q parameter against a strict allowlist of internal paths or trusted domains before issuing any redirect.
Replace direct redirects with an intermediary confirmation page that displays the destination URL to the user.
Use only relative paths for internal navigation and reject any value containing :// or beginning with //.

bash

# Example Apache mod_rewrite rule to block external redirect values in the q parameter
RewriteEngine On
RewriteCond %{QUERY_STRING} (^|&)q=(https?%3A%2F%2F|https?://|//) [NC]
RewriteRule ^/search-report-result\.php$ - [F,L]