Cross-site Request Forgery (CSRF) Affecting espressif/arduino-esp32 package, versions [,3.2.1)
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UNMANAGED-ESPRESSIFARDUINOESP32-10734083
- published13 Jul 2025
- disclosed7 Jul 2025
- creditJonathan Leitschuh
Introduced: 7 Jul 2025
CVE-2025-53540 (opens in a new tab)How to fix?
Upgrade espressif/arduino-esp32 to version 3.2.1 or higher.
Overview
Affected versions of this package are vulnerable to Cross-site Request Forgery (CSRF) via the HTTPUpdateServer process. An attacker can execute arbitrary code by sending crafted POST requests to the firmware update endpoints without proper CSRF protection.