Improper Validation of Unsafe Equivalence in Input Affecting alt-design/alt-redirect package, versions >=1.4.0, <1.6.4
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-PHP-ALTDESIGNALTREDIRECT-13536999
- published13 Oct 2025
- disclosed10 Oct 2025
- creditKasia Sok
Introduced: 10 Oct 2025
NewCVE-2025-60868 (opens in a new tab)How to fix?
Upgrade alt-design/alt-redirect to version 1.6.4 or higher.
Overview
alt-design/alt-redirect is an Alt Redirect addon, add Redirects to your site
Affected versions of this package are vulnerable to Improper Validation of Unsafe Equivalence in Input via handling of query string parameters when the "Query String Strip" feature is enabled. An attacker can manipulate query strings by using case variations, encoded keys, or duplicates to bypass sanitization, potentially leading to cache poisoning, parameter pollution, or service disruption.