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CVE-2013-7453 Nodejs CVE debrief

CVE-2013-7453 describes a cross-site scripting (XSS) filter bypass in the validator module for Node.js. According to the supplied record, attackers could use UI redressing-related vectors to get past the module’s XSS filtering in versions before 1.1.0. NVD’s CPE mapping in the source corpus also marks node.js releases through 1.0.4 as vulnerable. Because the issue requires user interaction and affects application-side input handling, the main risk is compromised browser-side trust and content integrity in affected deployments.

Vendor
Nodejs
Product
CVE-2013-7453
CVSS
MEDIUM 6.1
CISA KEV
Not listed in stored evidence
Original CVE published
2017-01-23
Original CVE updated
2026-05-13
Advisory published
2017-01-23
Advisory updated
2026-05-13

Who should care

Teams that run Node.js applications using the validator module, especially applications relying on it to sanitize or filter untrusted user input before rendering in a browser. Security engineers, application developers, and maintainers of older Node.js dependency stacks should treat this as a relevant input-validation weakness.

Technical summary

The supplied NVD data classifies the weakness as CWE-79 (cross-site scripting) with CVSS v3.0 vector AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N, scoring 6.1 (Medium). The vulnerability is described as a bypass of the validator module’s XSS filter via UI redressing-related vectors. The source corpus indicates affected validator module versions before 1.1.0, while the NVD CPE mapping flags node.js versions through 1.0.4 as vulnerable. This is a defense-in-depth issue: filtering logic cannot be assumed sufficient if an application depends on it as the only barrier against browser-side injection.

Defensive priority

Medium

Recommended defensive actions

  • Upgrade the validator module to version 1.1.0 or later, or remove the dependency if it is no longer required.
  • Review any application flows that rely on the validator module as the primary XSS defense and add server-side output encoding and contextual escaping.
  • Audit templates and rendering paths that process user-controlled content to confirm they do not depend on filter-only protection.
  • If older Node.js dependency trees are still deployed, inventory them for validator module usage and prioritize patching in internet-facing applications.
  • Validate mitigations against the affected code paths using safe test cases and regression checks, without attempting weaponized reproduction.

Evidence notes

All statements are grounded in the supplied official records and references: the CVE description, NVD metadata, and the referenced mitigation/advisory links. The issue is recorded as published on 2017-01-23 and modified on 2026-05-13 in the supplied timeline. NVD lists CWE-79 and a CVSS v3.0 vector of AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N. The corpus also includes an NVD CPE mapping for node.js through 1.0.4 and a description stating the validator module was affected before 1.1.0.

Official resources

The supplied record shows CVE-2013-7453 published on 2017-01-23 and modified on 2026-05-13. No KEV entry is listed in the provided enrichment data.