CVE-2025-12758
7.5 · HIGHOverview
CVE-2025-12758 is a high-severity vulnerability affecting validator_project validator. It was published on November 27, 2025 and has a CVSS 3.1 base score of 7.5 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
Versions of the package validator before 13.15.22 are vulnerable to Incomplete Filtering of One or More Instances of Special Elements in the isLength() function that does not take into account Unicode variation selectors (\uFE0F, \uFE0E) appearing in a sequence which lead to improper string length calculation. This can lead to an application using isLength for input validation accepting strings significantly longer than intended, resulting in issues like data truncation in databases, buffer overflows in other system components, or denial-of-service.
Remediation
Check the references section for vendor advisories and patches from validator_project. Update validator to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| validator_project | validator | >= 0, < 13.15.22 | Affected |
References
Frequently Asked Questions
What is CVE-2025-12758?
CVE-2025-12758 is a high-severity vulnerability affecting validator_project validator. It was published on November 27, 2025 and has a CVSS 3.1 base score of 7.5 (HIGH).
How severe is CVE-2025-12758?
This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2025-12758?
Check the references section for vendor advisories and patches from validator_project. Update validator to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2025-12758?
CyberStrike's AI-powered security agents can automatically detect CVE-2025-12758 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
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