Security readout for executives and security teams
Plain-English summary
This issue affects older i18next versions used for website or app translations. A configuration edge case can leave user input unescaped when teams expect it to be escaped, creating cross-site scripting risk in pages that render translated strings containing user-controlled values.
Executive priority
Treat as a targeted remediation item for web applications using old i18next versions. Business urgency rises if customer-supplied data is rendered in translated UI text, because successful XSS can affect user trust, sessions, and customer-facing pages.
Technical view
CVE-2017-16010 is CWE-79 in the i18next node module. In versions >=2.0.0 through <=3.4.3, calling init with interpolation options but without escapeValue can default escaping to undefined instead of the assumed true, allowing unescaped interpolation output.
Likely exposure
Exposure is most likely in Node.js applications using i18next >=2.0.0 <=3.4.3 and interpolating user-controlled values into translated content. Applications not using interpolation, or not rendering user-controlled values, have lower practical exposure.
Exploitation context
The source bundle does not show CISA KEV listing, active exploitation, public exploit status, or CVSS scoring. Exploitation would depend on an application rendering attacker-controlled input through affected i18next interpolation paths.
Researcher notes
The available evidence identifies the affected version range and configuration condition, but does not include CVSS, KEV status, or exploitation evidence. Prioritize dependency inventory and code-path review over broad assumptions about all i18next usage.
Mitigation direction
- Identify all applications using i18next versions >=2.0.0 <=3.4.3.
- Update i18next to a version outside the affected range, following vendor guidance.
- Explicitly set interpolation escapeValue where applications rely on escaping.
- Review translated templates that include user-controlled values.
- Add regression tests for escaping behavior in translation interpolation.
Validation and detection
- Check dependency manifests and lockfiles for affected i18next versions.
- Inspect i18next init calls that pass interpolation options without escapeValue.
- Confirm user-controlled values are escaped in rendered translated output.
- Verify tests cover translation interpolation with unsafe-looking input.
- Review deployed builds to ensure vulnerable package versions are absent.
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-79: User-session and phishing behavior lookup
Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2017-16010 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/i18next/i18next/pull/826CVE reference · x_refsource_MISC
- https://nodesecurity.io/advisories/326CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.