EUVD-2025-209275
GHSA-pq95-94c9-j987
Severity by source
AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
Lifecycle Timeline
3DescriptionCVE.org
yaffa v2.0.0 is vulnerable to Cross Site Scripting (XSS). An attacker can inject malicious JavaScript into the "Add Account Group" function on the account-group page, allowing execution of arbitrary script in the context of users who view the affected page.
AnalysisAI
Stored cross-site scripting (XSS) in yaffa v2.0.0 allows unauthenticated remote attackers to inject malicious JavaScript via the 'Add Account Group' function, enabling arbitrary script execution in the browsers of users who view the affected page. The vulnerability requires user interaction (clicking/viewing) to trigger but can compromise account confidentiality and integrity for affected users. EPSS exploitation probability is minimal at 0.02%, indicating low real-world exploitation likelihood despite the moderate CVSS score of 6.1.
Technical ContextAI
This vulnerability stems from improper input validation and output encoding in the account-group management feature of yaffa, a web application. The root cause is classified under CWE-94 (Code Injection), indicating that user-supplied input is processed without adequate sanitization before being rendered in the HTML context. The attack vector is network-based with low complexity, requiring only that an attacker craft a malicious account group name containing JavaScript payload; the application then stores and reflects this payload to subsequent users viewing the account group listing. No specific authentication is required to exploit the vulnerability (PR:N per CVSS vector), though successful exploitation depends on UI interaction from a victim user.
RemediationAI
Update yaffa to a patched version released after v2.0.0; specific patch version numbers are not provided in available advisory data. As an interim control, implementers should apply input validation and output encoding on the 'Add Account Group' function to sanitize or escape JavaScript special characters and HTML entities before storage and rendering. Content Security Policy (CSP) headers can be implemented to restrict script execution context. Consult the project repository at https://github.com/kantorge/yaffa for patch availability and release notes, and monitor the NVD entry at https://nvd.nist.gov/vuln/detail/CVE-2025-70844 for remediation guidance.
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Same weakness CWE-94 – Code Injection
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External POC / Exploit Code
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