EUVD-2026-33626
GHSA-x45x-jwqm-6m6q
Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
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AccessIdentify exposed Online House Rental System
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DeliverySend crafted POST to /ajax.php?action=login
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ExploitInject SQL via Username parameter
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ExecutionBypass authentication or extract database contents
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ImpactHarvest credentials and tenant data
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization Parameterized queries, prepared statements
MITRE ATT&CK
2 techniques across 2 tactics: Initial Access, Persistence The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Exploitation Conditions | Exploitation requires only network reachability to a deployed itsourcecode Online House Rental System 1.0 instance with the /ajax.php endpoint exposed (the application's default routing); per CVSS AV:N/AC:L/PR:N/UI:N no authentication, user interaction, or non-default configuration is needed beyond running the shipped login workflow. Realistic exploitation is limited mainly by the software's small install base (a tutorial/sample PHP project rather than enterprise software) and by any front-end WAF or network ACL restricting access to /ajax.php?action=login. |
| Impact | The CVSS 3.1 vector AV:N/AC:L/PR:N/UI:N indicates remote, low-complexity, unauthenticated exploitation against an exposed login endpoint, supporting the 7.3 base score with partial CIA impact (C:L/I:L/A:L). Temporal metrics E:P (Proof-of-Concept) and RC:R (Reasonable confidence) align with the VulDB report and GitHub-hosted exploit. The CVE is not in CISA KEV and no EPSS score is provided in the input, so widespread automated exploitation cannot be confirmed; however, the combination of public PoC, no authentication requirement, and a trivially abusable login parameter makes opportunistic exploitation realistic against any exposed instance. Real-world risk is constrained primarily by the niche, low-deployment nature of itsourcecode tutorial software rather than by exploitation difficulty. |
| Exploit ScenarioDerived | An unauthenticated attacker locates an internet-exposed Online House Rental System instance, then submits a crafted POST request to /ajax.php?action=login with a Username payload such as admin' OR '1'='1'-- to bypass authentication or extract data via UNION/error-based techniques. Because a public PoC is published on GitHub (zhengdexu-bot/zhengdexu issues/3), attackers can copy-paste working requests, enumerate users, dump credentials, or pivot to administrative functions with minimal skill. |
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Alert meAnalysisAIv1 – Jun 01, 2026
SQL injection in itsourcecode Online House Rental System 1.0 allows remote unauthenticated attackers to manipulate the Username parameter of the /ajax.php?action=login endpoint to inject arbitrary SQL. Publicly available exploit code exists (VulDB-referenced PoC on GitHub), increasing the practical risk despite the application's limited deployment footprint. No CISA KEV listing is present, so this represents publicly available exploit code without confirmed active exploitation.
RemediationAI
No vendor-released patch identified at time of analysis; the VulDB entry (https://vuldb.com/vuln/367529) and exploit reference (https://github.com/zhengdexu-bot/zhengdexu/issues/3) do not cite a fixed version from itsourcecode. Operators should immediately patch the /ajax.php?action=login handler to use parameterized queries (PDO prepared statements or mysqli_prepare with bound parameters) for the Username and Password inputs, validate/whitelist input characters, and add server-side rate limiting on login attempts. As compensating controls until source-level fixes are applied: place the application behind a WAF with SQLi signature enforcement on /ajax.php (trade-off: may break legitimate username characters such as apostrophes); restrict /ajax.php?action=login to internal networks via reverse-proxy ACLs (trade-off: blocks legitimate remote tenants); and run the backing MySQL account with least privilege so successful injection cannot read/write outside the application schema.
Affected VersionsENISA
Affected Packages
Source: OSV (Open Source Vulnerabilities)
Affects your stack
Affects 1 package in euvd
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
The affected software is a PHP-based web application (itsourcecode Online House Rental System) distributed as open-source sample/educational code via itsourcecode.com. The root cause is CWE-89 (Improper Neutralization of Special Elements used in an SQL Command), specifically in the login AJAX handler at /ajax.php?action=login, where the Username POST parameter is concatenated into a SQL query without parameterization or escaping. CPE cpe:2.3:a:itsourcecode:online_house_rental_system identifies the precise product, and the PHP/SQLi tags confirm a classic injection pattern typical of unhardened PHP/MySQL learning-project codebases.
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Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
Primary rating from Vendor (VulDB) · only source for this CVE.
CVSS VectorVendor: VulDB
Lifecycle Timeline
2DescriptionCVE.org
A weakness has been identified in itsourcecode Online House Rental System 1.0. The impacted element is an unknown function of the file /ajax.php?action=login. Executing a manipulation of the argument Username can lead to sql injection. The attack may be performed from remote. The exploit has been made available to the public and could be used for attacks.
Executive ViewAI
itsourcecode Online House Rental System 1.0 contains an unauthenticated SQL injection vulnerability in the login endpoint that allows attackers to directly manipulate the backend database without requiring user credentials. Organizations using this application face immediate risk to customer personal and financial data; public exploit code is freely available, eliminating technical barriers to attack.
No vendor-released patch identified at time of analysis. Interim mitigations: Web Application Firewall with SQL injection signatures; network segmentation and access controls limiting exposure to trusted networks; database activity monitoring for unauthorized queries; parameterized query enforcement if available through system configuration.
Threat Intelligence Overview
NVD
CVE.org
EPSS
Vulnrichment
VulDB
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
SQL injection exploits the way applications construct database queries by mixing user input directly into SQL statements.
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