Overview
CVE-2025-30190 is a medium severity vulnerability affecting office documents. This flaw allows malicious actors to inject script code when a user edits a document. Successfully exploiting this vulnerability can lead to the execution of unintended actions within the context of the user’s account, potentially including the exfiltration of sensitive information. This advisory outlines the technical details, potential impact, and necessary mitigation steps to secure your systems.
Technical Details
The vulnerability stems from insufficient sanitization of input when handling specific elements within office documents. By crafting a malicious document with specially designed content, an attacker can inject script code that will be executed when a user opens and edits the document within a vulnerable application. This injected script runs under the user’s privileges, giving the attacker potential access to sensitive data and the ability to perform actions on behalf of the user.
CVSS Analysis
This vulnerability has been assigned a CVSS score of 5.4, indicating a MEDIUM severity. The CVSS vector reflects the exploitability and potential impact of the vulnerability. While no publicly available exploits are currently known, the potential for exploitation remains a significant concern.
Possible Impact
Successful exploitation of CVE-2025-30190 can result in:
- Data Exfiltration: Sensitive information, such as user credentials, confidential documents, or other proprietary data, could be stolen.
- Account Takeover: The attacker could potentially gain control of the user’s account, enabling them to perform unauthorized actions.
- Malware Distribution: The injected script could be used to download and execute malicious software on the user’s system.
- Phishing Attacks: The vulnerability could be used to launch phishing attacks, tricking users into providing sensitive information.
Mitigation and Patch Steps
To mitigate the risk associated with CVE-2025-30190, it is crucial to apply the provided updates and patch releases immediately. Specifically:
- Apply the provided security updates: Refer to the vendor’s advisory (linked below) for detailed instructions on how to update your affected software.
- Educate users: Train users to be cautious when opening attachments from untrusted sources.
- Implement strong email security policies: Utilize email filtering and anti-malware solutions to detect and block potentially malicious attachments.
- Keep software up to date: Regularly update all software applications to ensure that they have the latest security patches.
