CVE-2025-7824 is a security vulnerability identified in Jinher OA version 1.1, specifically related to the processing of the XmlHttp.aspx file. The vulnerability is classified as an XML External Entity (XXE) reference issue. XXE vulnerabilities occur when an XML parser processes external entity references within XML input without proper validation or sanitization. This can allow an attacker to read arbitrary files on the server, perform server-side request forgery (SSRF), or cause denial of service (DoS) by exploiting the XML parser. In this case, the vulnerability is remotely exploitable without requiring authentication or user interaction, as indicated by the CVSS vector (AV:N/AC:L/AT:N/UI:N/PR:N). The CVSS score of 6.9 (medium severity) reflects a moderate risk, with low impact on confidentiality, integrity, and availability individually, but with the potential for combined impact. The vulnerability affects only version 1.1 of Jinher OA, a product used for office automation. Although no known exploits are currently observed in the wild, the public disclosure of the exploit increases the risk of exploitation. The lack of available patches or mitigation links suggests that users of Jinher OA 1.1 must take immediate protective measures. The vulnerability does not require privileges or user interaction, making it easier for attackers to exploit remotely. The absence of supply chain or social engineering vectors reduces complexity but does not diminish the threat posed by direct exploitation of the XML processing flaw.

For European organizations using Jinher OA 1.1, this vulnerability poses a significant risk, especially for entities relying on this software for internal communications and document management. Exploitation could lead to unauthorized disclosure of sensitive internal files, potentially exposing confidential business information or personal data protected under GDPR. Additionally, attackers could leverage the vulnerability to perform SSRF attacks, potentially pivoting into internal networks or accessing restricted resources, increasing the risk of broader compromise. The medium severity rating suggests that while the vulnerability may not directly cause system-wide outages, the confidentiality and integrity of critical data could be compromised. This is particularly concerning for sectors such as government, finance, healthcare, and critical infrastructure in Europe, where data protection and operational continuity are paramount. The remote and unauthenticated nature of the exploit increases the attack surface, making it accessible to a wide range of threat actors, including cybercriminals and state-sponsored groups. The lack of known exploits in the wild currently provides a window for mitigation, but the public disclosure means that this window may close rapidly.

European organizations should immediately assess their deployment of Jinher OA 1.1 and prioritize upgrading to a patched or newer version if available. In the absence of an official patch, organizations should implement the following mitigations: 1) Disable or restrict XML external entity processing in the XmlHttp.aspx component or the underlying XML parser configuration to prevent external entity resolution. 2) Employ web application firewalls (WAFs) with custom rules to detect and block XML payloads containing external entity declarations or suspicious patterns targeting XmlHttp.aspx. 3) Conduct network segmentation to limit the exposure of Jinher OA servers, restricting inbound traffic to trusted sources only. 4) Monitor logs for unusual XML requests or error messages indicative of exploitation attempts. 5) Implement strict input validation and sanitization on XML inputs where possible. 6) Engage with Jinher support or vendor channels to obtain official patches or guidance. 7) Educate IT and security teams about the vulnerability and ensure incident response plans are updated to address potential exploitation scenarios. These measures, combined, reduce the risk of exploitation while maintaining operational continuity.