CVE-2025-12758
Quick assessment
Affected
n/a validator
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Validator.js是validatorjs开源的一个字符串验证器 Validator.js 13.15.22之前版本存在安全漏洞，该漏洞源于isLength函数未考虑Unicode变体选择器，可能导致字符串长度计算不当。
Possible ATT&CK Techniques 2 AI
T1189 · Drive-by Compromise T1190 · Exploit Public-Facing ApplicationAffected Version Matrix 2
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| n/a | org.webjars.npm:validator | < 13.15.22 |
affected |
| n/a | validator | < 13.15.22 |
affected |
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I. Basic Information for CVE-2025-12758
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对一个或多个特殊元素实例的过滤不完全
Source: CVE Program / CVE List V5
Vulnerability Title
Validator.js 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Validator.js是validatorjs开源的一个字符串验证器 Validator.js 13.15.22之前版本存在安全漏洞，该漏洞源于isLength函数未考虑Unicode变体选择器，可能导致字符串长度计算不当。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| - | validator | 0 ~ 13.15.22 | - |
|
| - | org.webjars.npm:validator | 0 ~ 13.15.22 | - |
|
II. Public POCs for CVE-2025-12758
| # | POC Description | Source Link | Shenlong Link |
|---|---|---|---|
| 1 | None | https://github.com/dajneem23/CVE-2025-12758 | POC Details |
AI-Generated POC
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Qwen3.6-35B-A3B
· 13233 chars
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III. Intelligence Information for CVE-2025-12758
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Vendor Advisories for CVE-2025-12758 (2)
IV. Related Vulnerabilities
V. Comments for CVE-2025-12758
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