CVE-2025-28891 identifies a security vulnerability in the jazzigor price-calc software, specifically versions up to and including 0.6.3. The vulnerability is a Cross-Site Request Forgery (CSRF) flaw that enables attackers to trick authenticated users into submitting unauthorized requests to the application. This CSRF vulnerability facilitates Stored Cross-Site Scripting (XSS), where malicious scripts injected by an attacker are permanently stored on the server and served to other users. Stored XSS can lead to session hijacking, credential theft, and unauthorized actions within the application context. The vulnerability arises because the application lacks proper CSRF protections such as anti-CSRF tokens and does not sufficiently sanitize or validate user inputs that are stored and later rendered in the user interface. No patches or fixes have been published yet, and no known exploits have been observed in the wild, but the vulnerability is publicly disclosed and documented in the CVE database. The absence of a CVSS score requires an assessment based on the potential impact and exploitability. The combination of CSRF and stored XSS is particularly dangerous because it allows attackers to bypass authentication and execute persistent malicious code affecting multiple users. The vulnerability affects all users running price-calc versions up to 0.6.3, which may be used in various business environments for pricing calculations. The threat is significant given the potential for data theft, session compromise, and unauthorized transactions.

The impact of CVE-2025-28891 on organizations worldwide can be substantial. Exploitation of this vulnerability allows attackers to perform unauthorized actions on behalf of legitimate users, potentially leading to unauthorized data manipulation, theft of sensitive information, and disruption of normal business operations. The stored XSS component can compromise user sessions, enabling attackers to steal cookies, credentials, or perform actions with the victim's privileges. This can lead to further lateral movement within an organization's network or unauthorized access to critical systems. The vulnerability undermines the confidentiality, integrity, and availability of the affected application and its data. Organizations relying on price-calc for pricing or financial calculations may face financial inaccuracies, loss of customer trust, and regulatory compliance issues if exploited. The lack of known exploits currently provides a window for proactive mitigation, but the public disclosure increases the risk of future exploitation attempts. The threat is particularly relevant for organizations with web-facing deployments of price-calc that have authenticated user bases.

To mitigate CVE-2025-28891 effectively, organizations should implement multiple layers of defense. First, apply strict anti-CSRF protections by integrating CSRF tokens into all state-changing requests and validating these tokens server-side. Second, enhance input validation and output encoding to prevent stored XSS by sanitizing all user-supplied data before storage and rendering, using established libraries or frameworks that enforce context-aware escaping. Third, enforce the principle of least privilege by restricting user permissions to only those necessary for their roles, reducing the impact of compromised accounts. Fourth, implement Content Security Policy (CSP) headers to limit the execution of unauthorized scripts in the browser. Fifth, monitor application logs and user activities for unusual patterns that may indicate exploitation attempts. Finally, maintain up-to-date backups and prepare incident response plans specific to web application attacks. Since no official patch is available yet, consider isolating or limiting access to the price-calc application until a fix is released. Engage with the vendor or community for updates and patches.