CVE-2025-62930 is a medium-severity DOM-based Cross-site Scripting (XSS) vulnerability found in the RomanCode MapSVG plugin, specifically affecting versions up to and including 8.7.15. The vulnerability stems from improper neutralization of user-supplied input during the generation of web pages, which allows malicious actors to inject and execute arbitrary JavaScript code within the context of the victim's browser session. This type of XSS is DOM-based, meaning the malicious payload is executed as a result of client-side script processing rather than server-side injection. The vulnerability does not require authentication but does require user interaction, such as clicking a crafted link or visiting a maliciously crafted page that triggers the payload. The CVSS v3.1 score is 6.1, reflecting a medium severity level, with the vector indicating network attack vector (AV:N), low attack complexity (AC:L), no privileges required (PR:N), user interaction required (UI:R), scope changed (S:C), and partial impact on confidentiality and integrity (C:L/I:L), with no impact on availability (A:N). No known exploits are currently reported in the wild, but the vulnerability poses a risk to websites using MapSVG for interactive vector maps, which are commonly used in web applications for geographic data visualization. The vulnerability could allow attackers to steal session tokens, manipulate page content, or perform actions on behalf of the user, potentially leading to further compromise of user data or site integrity. Since MapSVG is a WordPress plugin widely used in various industries, the vulnerability's exploitation could affect a broad range of organizations, especially those relying on interactive maps for customer engagement or internal data visualization.

For European organizations, the impact of CVE-2025-62930 can be significant, particularly for those that use MapSVG to provide interactive maps on their websites or internal portals. Successful exploitation could lead to theft of sensitive user information such as session cookies, enabling account hijacking or unauthorized actions performed in the context of the victim user. This could result in data breaches, reputational damage, and loss of customer trust. Since the vulnerability affects confidentiality and integrity but not availability, the primary risks involve unauthorized data access and manipulation rather than service disruption. European organizations in sectors like tourism, logistics, real estate, and government services that rely heavily on geographic information systems (GIS) and interactive maps are at higher risk. Additionally, regulatory frameworks such as GDPR impose strict requirements on data protection, and exploitation of this vulnerability could lead to compliance violations and associated penalties. The lack of known exploits in the wild currently reduces immediate risk, but the presence of a public CVE and medium severity score means attackers may develop exploits, increasing future risk.

To mitigate CVE-2025-62930, European organizations should take several specific actions beyond generic advice: 1) Immediately monitor for updates or patches from RomanCode and apply them as soon as they become available to ensure the vulnerability is remediated at the source. 2) Implement strict input validation and sanitization on all user-supplied data that interacts with MapSVG components, especially any parameters that influence map rendering or interactivity. 3) Deploy Content Security Policy (CSP) headers to restrict the execution of unauthorized scripts and reduce the impact of potential XSS payloads. 4) Conduct thorough code reviews and security testing of any customizations or integrations involving MapSVG to identify and remediate unsafe DOM manipulations. 5) Educate web developers and administrators about the risks of DOM-based XSS and best practices for secure coding in JavaScript. 6) Use web application firewalls (WAFs) with rules tuned to detect and block typical XSS attack patterns targeting MapSVG. 7) Monitor web traffic and logs for suspicious activities indicative of attempted exploitation, such as unusual query parameters or script injections. 8) Consider isolating or sandboxing MapSVG content where feasible to limit the scope of script execution. These measures collectively reduce the likelihood and impact of exploitation until a vendor patch is applied.