Advisories for Npm/@Intlify/Vue-I18n-Core package

When escapeParameter is enabled (escapeParameterHtml in the Legacy API), Vue I18n passes the translated string through sanitizeTranslatedHtml(). The sanitizer escapes < and > in attribute values and neutralizes event handler attributes such as onerror, but it does not handle the srcdoc attribute of <iframe>. The value of srcdoc is an HTML document: the browser decodes the character references in it and parses the result as a nested document in the …

When escapeParameter is enabled (escapeParameterHtml in the Legacy API), Vue I18n escapes the interpolation parameters before formatting a message. escapeParams() escapes either the list values or the named values, but not both: the two branches are joined by else. When a single call passes both, for example t(key, ['…'], { named: { … } }), the named values reach the message without being escaped.

The escapeParameterHtml: true option in Vue I18n is designed to protect against HTML/script injection by escaping interpolated parameters. However, this setting fails to prevent execution of certain tag-based payloads, such as <img src=x onerror=…>, if the interpolated value is inserted inside an HTML context using v-html. This may lead to a DOM-based XSS vulnerability, even when using escapeParameterHtml: true, if a translation string includes minor HTML and is rendered via …

Vulnerability type: Prototype Pollution Vulnerability Location(s):

vue-i18n can be passed locale messages to createI18n or useI18n. we can then translate them using t and $t. vue-i18n has its own syntax for local messages, and uses a message compiler to generate AST. In order to maximize the performance of the translation function, vue-i18n uses bundler plugins such as @intlify/unplugin-vue-i18n and bulder to convert the AST in advance when building the application. By using that AST as the …

Vulnerability type: Prototype Pollution Affected Package: Product: @intlify/shared Version: 10.0.4 Vulnerability Location(s): node_modules/@intlify/shared/dist/shared.cjs:232:26 Description: The latest version of @intlify/shared (10.0.4) is vulnerable to Prototype Pollution through the entry function(s) lib.deepCopy. An attacker can supply a payload with Object.prototype setter to introduce or modify properties within the global prototype chain, causing denial of service (DoS) the minimum consequence. Moreover, the consequences of this vulnerability can escalate to other injection-based attacks, depending …