CVE-2026-100753 in Real Estate Manager Extension
Summary
by MITRE • 09/28/2026
Joomla Extension - ordasoft.com - Reflected Cross-Site Scripting in Real Estate Manager (Free) < 6.7.9 - The public property-detail page’s “leave a review” form repopulates its title field directly from the request with no escaping and no filtering function of any kind, unlike the adjacent comment field on the same form, which at least receives partial tag-stripping. A " character in the title query parameter breaks out of the HTML attribute the value is placed in, allowing a following <script> element to execute in the browser of anyone who loads the crafted link.
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Analysis
by VulDB Data Team • 09/28/2026
The vulnerability identified in Real Estate Manager for Joomla versions prior to 6.7.9 represents a classic instance of reflected cross-site scripting within a public-facing component interface. This specific security flaw resides in the property detail page, specifically affecting the user interaction mechanism known as the leave a review form. The core technical deficiency lies in how the application handles input data submitted via HTTP requests for the title field associated with these reviews. Unlike other fields on the same form, such as the comment section which implements partial tag-stripping to mitigate script injection, the title parameter is processed without any sanitization or encoding mechanisms. This inconsistency creates a significant attack surface where malicious actors can inject executable JavaScript code directly into the HTML response generated by the server.
From a technical perspective, the vulnerability exploits the lack of output encoding when rendering user-supplied data back to the client browser. When a request containing specially crafted input is processed, the application inserts the raw value of the title parameter directly into an HTML attribute context without escaping special characters like double quotes or angle brackets. This allows an attacker to break out of the intended attribute boundary using a closing quote character and subsequently inject script tags that are interpreted by the victim's web browser as legitimate code. The execution occurs in the context of the vulnerable website, granting the injected scripts full access to cookies, session tokens, and other sensitive data stored locally for that domain. This behavior aligns with CWE-79, which categorizes improper neutralization of input during web page generation, commonly known as cross-site scripting.
The operational impact of this vulnerability is substantial due to its reflected nature and public accessibility. Because the exploit vector relies on a crafted link rather than stored data in a database, it requires social engineering or targeted delivery methods such as phishing emails or malicious links shared through messaging platforms. Once a victim clicks the poisoned URL, their browser automatically executes the embedded script without any further interaction required from the user. This can lead to session hijacking, where an attacker captures authentication cookies to impersonate the legitimate user within the Joomla application. It also enables credential theft if login forms are present on the same domain or page context, as well as defacement of the website interface by manipulating DOM elements through injected scripts. The ability to execute arbitrary JavaScript effectively compromises the confidentiality and integrity aspects of the security triad for users interacting with this specific component.
In terms of threat modeling and industry frameworks, this vulnerability maps directly to MITRE ATT&CK technique T1059.007, which covers Command and Scripting Interpreter: JavaScript within a browser environment. The attack path involves initial access via phishing or lure delivery followed by execution in the victim's context. Defenders should recognize that reflected XSS often serves as an entry point for more complex attacks including drive-by downloads or redirection to malicious sites designed to exploit other vulnerabilities in the user’s software stack. The absence of input validation on the server side combined with insufficient output encoding constitutes a fundamental design flaw that undermines trust boundaries between client and server inputs.
Mitigation strategies must address both immediate remediation and long-term architectural improvements. For administrators using Real Estate Manager versions below 6.7.9, the primary solution is to upgrade immediately to version 6.7.9 or later where this specific input handling issue has been resolved by implementing proper escaping functions for all user-supplied data rendered in HTML contexts. Until an update can be applied, temporary mitigations may include deploying a Web Application Firewall configured with rulesets capable of detecting and blocking reflected XSS payloads containing script tags or event handlers within URL parameters. Additionally, enabling Content Security Policy headers on the Joomla site can restrict the execution of inline scripts, thereby neutralizing many cross-site scripting attacks even if input validation is incomplete. Developers should also audit other forms for similar inconsistencies in sanitization logic to ensure uniform security postures across all user inputs regardless of field type or purpose.