CVE-2025-41441 is a vulnerability found in SYNCK GRAPHICA's Mailform Pro CGI software versions prior to 4.3.4. The issue arises from the generation of error messages that inadvertently contain sensitive information, specifically coupon codes, when the coupon feature is used. This vulnerability allows a remote attacker, without any authentication or user interaction, to trigger error conditions that expose these coupon codes through the error messages returned by the application. The vulnerability is classified with a CVSS 3.0 base score of 3.7, indicating a low severity level. The attack vector is network-based (AV:N), requires high attack complexity (AC:H), no privileges (PR:N), and no user interaction (UI:N). The impact is limited to confidentiality (C:L) with no effect on integrity or availability. Since coupon codes may represent promotional or discount credentials, their exposure could lead to unauthorized use or financial loss for businesses relying on these codes for marketing or sales promotions. However, the vulnerability does not allow for broader system compromise or data breaches beyond the coupon information. No known exploits are currently reported in the wild, and no patches or mitigations have been explicitly linked in the provided data, though upgrading to version 4.3.4 or later is implied to resolve the issue. The vulnerability specifically affects only those deployments of Mailform Pro CGI that utilize the coupon feature, limiting the scope of impact to organizations leveraging this functionality.

For European organizations using SYNCK GRAPHICA Mailform Pro CGI with the coupon feature enabled, this vulnerability could result in unauthorized disclosure of coupon codes. While the direct impact on core business operations, system integrity, or availability is minimal, the leakage of coupon codes could lead to financial losses through unauthorized discounts or fraudulent transactions. This could also damage customer trust if promotional campaigns are undermined. Organizations in retail, e-commerce, or marketing sectors that rely on coupon-based promotions are particularly at risk. Additionally, exposure of such sensitive promotional data might provide attackers with insights into marketing strategies. However, since the vulnerability does not allow further system compromise or data exfiltration beyond coupon codes, the overall risk to critical infrastructure or sensitive personal data is low.

European organizations should verify if they are running versions of Mailform Pro CGI prior to 4.3.4 and whether the coupon feature is enabled. Immediate mitigation involves upgrading to version 4.3.4 or later, where this vulnerability is addressed. If upgrading is not immediately feasible, organizations should consider disabling the coupon feature temporarily to prevent exposure. Additionally, reviewing and sanitizing error message outputs to ensure no sensitive information is leaked is recommended. Implementing web application firewalls (WAFs) to detect and block anomalous requests that trigger error messages could reduce exploitation risk. Monitoring logs for unusual access patterns to the mailform CGI endpoints may help identify attempted exploitation. Finally, organizations should audit coupon code usage and revoke or reissue compromised codes if leakage is suspected.