CVE-2025-60183 identifies a stored cross-site scripting (XSS) vulnerability in the Silencesoft RSS Reader, specifically within its external-rss-reader component. The flaw stems from improper neutralization of user-supplied input during the generation of web pages, allowing attackers to inject malicious scripts that are stored persistently. When other users access the affected RSS reader interface or feed, the malicious script executes in their browsers under the context of the vulnerable application. This can lead to unauthorized actions such as cookie theft, session hijacking, or redirection to malicious sites. The vulnerability affects all versions up to and including 0.6, with no patches currently available. Exploitation does not require authentication but does require that a user views the compromised content. Although no known exploits are reported in the wild, the nature of stored XSS makes it a significant risk, especially in environments where RSS feeds are widely used for information dissemination. The lack of CVSS scoring necessitates a severity assessment based on impact and exploitability factors. The vulnerability highlights the importance of proper input validation and output encoding in web applications that generate dynamic content from external sources.

The impact of CVE-2025-60183 is primarily on the confidentiality and integrity of user data within the Silencesoft RSS Reader environment. Successful exploitation allows attackers to execute arbitrary scripts in the context of the victim's browser, potentially leading to session hijacking, credential theft, or unauthorized actions performed on behalf of the user. This can compromise sensitive information and lead to further network penetration if the RSS reader is integrated within larger enterprise systems. The availability impact is generally low but could be escalated if attackers use the vulnerability to inject disruptive scripts. Organizations relying on Silencesoft RSS Reader for aggregating and displaying RSS feeds may face reputational damage and operational risks if user data is compromised. Since the vulnerability is stored XSS, it can persist until the malicious input is removed, increasing exposure duration. The absence of patches increases the window of opportunity for attackers once exploits become available.

To mitigate CVE-2025-60183, organizations should implement strict input validation and output encoding on all user-supplied data before rendering it in web pages. Employ Content Security Policy (CSP) headers to restrict the execution of unauthorized scripts. Regularly audit and sanitize stored content within the RSS reader to detect and remove malicious payloads. If possible, isolate the RSS reader in a sandboxed environment to limit the impact of potential exploitation. Monitor logs and user activity for signs of XSS attacks or unusual behavior. Engage with the vendor or open-source community to track patch releases and apply updates promptly once available. Consider disabling or restricting the use of external RSS feeds from untrusted sources until a fix is implemented. Educate users about the risks of interacting with suspicious feeds or content within the reader. Finally, implement web application firewalls (WAF) with rules designed to detect and block XSS attack patterns targeting the RSS reader.