Unchecked Return Value Affecting spiderlabs/modsecurity package, versions [,2.9.12)
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-SPIDERLABSMODSECURITY-11958961
- published18 Aug 2025
- disclosed6 Aug 2025
- creditUnknown
Introduced: 6 Aug 2025
NewCVE-2025-54571 (opens in a new tab)How to fix?
Upgrade spiderlabs/modsecurity to version 2.9.12 or higher.
Overview
Affected versions of this package are vulnerable to Unchecked Return Value via improper handling of HTTP response Content-Type headers. An attacker can execute arbitrary scripts in the context of the victim's browser or disclose sensitive source code by manipulating the Content-Type of HTTP responses.