CVE-2025-34182

Description

In Deciso OPNsense before 25.7.4, when creating an "Interfaces: Devices: Point-to-Point" entry, the value of the parameter ptpid is not sanitized of HTML-related characters/strings. This value is directly displayed when visiting the page/interfaces_assign.php, which can result in stored cross-site scripting. The attacker must be authenticated with at-least "Interfaces: PPPs: Edit" permission. This vulnerability has been addressed by the vendor in the product release notes as "ui: legacy_html_escape_form_data() was not escaping keys only data elements."

PUBLISHED Reserved 2025-04-15 | Published 2025-10-01 | Updated 2025-10-01 | Assigner VulnCheck

Problem types

CWE-79 Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')

Product status

Credits

Alex Williams from Pellera Technologies finder

References

docs.opnsense.org/releases/CE_25.7.html vendor-advisory patch

www.vulncheck.com/advisories/decisio-opnsense-stored-xss third-party-advisory

cve.org (CVE-2025-34182)

nvd.nist.gov (CVE-2025-34182)

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