What is CVE-2025-12758?

CVE-2025-12758 is a high-severity vulnerability in Validator, classified under CWE-792. CVSS score: 7.5/10. Published 2025-11-27.

How severe is CVE-2025-12758?

High severity. CVSS v3 base score is 7.5 out of 10.

Is CVE-2025-12758 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Validator

CVE-2025-12758

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) a…

EPSS: 0.001 (29.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P.

Affected products

N/a Validator — versions 0

Weakness classification (CWE)

CWE-792

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2025-12758?: CVE-2025-12758 is a high-severity vulnerability in Validator, classified under CWE-792. CVSS score: 7.5/10. Published 2025-11-27.
How severe is CVE-2025-12758?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2025-12758 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.