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{"affected":[{"affectedData":[{"defaultStatus":"unaffected","product":"Robo Gallery – Photo & Image Slider","vendor":"robosoft","versions":[{"lessThanOrEqual":"5.1.3","status":"affected","version":"0","versionType":"semver"}]}],"source":"security@wordfence.com"}],"cveTags":[],"descriptions":[{"lang":"en","value":"The Robo Gallery plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'Loading Label' setting in all versions up to, and including, 5.1.3. The plugin uses a custom `|***...***|` marker pattern in its `fixJsFunction()` method to embed raw JavaScript function references within JSON-encoded configuration objects. When a gallery's options are rendered on the frontend, `json_encode()` wraps all string values in double quotes. The `fixJsFunction()` method then strips the `\"|***` and `***|\"` sequences, effectively converting a JSON string value into raw JavaScript code. The Loading Label field (stored as `rbs_gallery_LoadingWord` post_meta) is an `rbstext` type field that is sanitized with `sanitize_text_field()` on save. While this strips HTML tags, it does not strip the `|***...***|` markers since they contain no HTML. When a user inputs `|***alert(document.domain)***|`, the value passes through sanitization intact, is stored in post_meta, and is later retrieved and output within an inline `<script>` tag via `renderMainBlock()` with the quote markers stripped — resulting in arbitrary JavaScript execution. The gallery post type uses `capability_type => 'post'`, allowing Author-level users to create galleries. This makes it possible for authenticated attackers, with Author-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses a page containing the gallery shortcode."},{"lang":"es","value":"El plugin Robo Gallery para WordPress es vulnerable a cross-site scripting almacenado a través de la configuración Loading Label en todas las versiones hasta, e incluyendo, la 5.1.3. El plugin utiliza un patrón de marcador personalizado '| ... |' en su método 'fixJsFunction()' para incrustar referencias de funciones JavaScript en bruto dentro de objetos de configuración codificados en JSON. Cuando las opciones de una galería se renderizan en el frontend, 'json_encode()' envuelve todos los valores de cadena entre comillas dobles. El método 'fixJsFunction()' luego elimina las secuencias \"| y |\" , convirtiendo efectivamente un valor de cadena JSON en código JavaScript en bruto. El campo Loading Label (almacenado como 'rbs_gallery_LoadingWord' post_meta) es un campo de tipo 'rbstext' que se sanitiza con 'sanitize_text_field()' al guardar. Si bien esto elimina las etiquetas HTML, no elimina los marcadores '| ... |' ya que no contienen HTML. Cuando un usuario introduce '| alert(document.domain) |', el valor pasa por la sanitización intacto, se almacena en post_meta, y luego se recupera y se muestra dentro de una etiqueta ' script ' en línea a través de 'renderMainBlock()' con los marcadores de comillas eliminados - lo que resulta en la ejecución arbitraria de JavaScript. El tipo de publicación de galería utiliza 'capability_type = post ', permitiendo a los usuarios con nivel de Autor crear galerías. Esto hace posible que atacantes autenticados, con acceso de nivel de Autor y superior, inyecten scripts web arbitrarios en páginas que se ejecutarán cada vez que un usuario acceda a una página que contenga el shortcode de la galería."}],"id":"CVE-2026-4300","lastModified":"2026-07-24T20:10:00.147","metrics":{"cvssMetricV31":[{"cvssData":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.4,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","version":"3.1"},"exploitabilityScore":3.1,"impactScore":2.7,"source":"security@wordfence.com","type":"Secondary"}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"id":"CVE-2026-4300","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","timestamp":"2026-04-08T14:17:41.302256Z","version":"2.0.3"}}]},"published":"2026-04-08T10:16:01.953","references":[{"source":"security@wordfence.com","url":"https://plugins.trac.wordpress.org/browser/robo-gallery/tags/5.1.3/includes/frontend/modules/base-grid/grid/grid.v1.php#L89"},{"source":"security@wordfence.com","url":"https://plugins.trac.wordpress.org/browser/robo-gallery/tags/5.1.3/includes/frontend/modules/base-grid/layout.v1.php#L101"},{"source":"security@wordfence.com","url":"https://plugins.trac.wordpress.org/browser/robo-gallery/tags/5.1.3/includes/frontend/modules/base-grid/layout.v1.php#L52"},{"source":"security@wordfence.com","url":"https://plugins.trac.wordpress.org/browser/robo-gallery/tags/5.1.3/includes/frontend/modules/class/jsoptions.php#L87"},{"source":"security@wordfence.com","url":"https://plugins.trac.wordpress.org/browser/robo-gallery/tags/5.1.3/includes/frontend/modules/class/jsoptions.php#L97"},{"source":"security@wordfence.com","url":"https://plugins.trac.wordpress.org/browser/robo-gallery/tags/5.1.3/includes/options/rbs_gallery_options_loading.php#L95"},{"source":"security@wordfence.com","url":"https://plugins.trac.wordpress.org/browser/robo-gallery/trunk/includes/frontend/modules/base-grid/grid/grid.v1.php#L89"},{"source":"security@wordfence.com","url":"https://plugins.trac.wordpress.org/browser/robo-gallery/trunk/includes/frontend/modules/base-grid/layout.v1.php#L101"},{"source":"security@wordfence.com","url":"https://plugins.trac.wordpress.org/browser/robo-gallery/trunk/includes/frontend/modules/base-grid/layout.v1.php#L52"},{"source":"security@wordfence.com","url":"https://plugins.trac.wordpress.org/browser/robo-gallery/trunk/includes/frontend/modules/class/jsoptions.php#L87"},{"source":"security@wordfence.com","url":"https://plugins.trac.wordpress.org/browser/robo-gallery/trunk/includes/frontend/modules/class/jsoptions.php#L97"},{"source":"security@wordfence.com","url":"https://plugins.trac.wordpress.org/browser/robo-gallery/trunk/includes/options/rbs_gallery_options_loading.php#L95"},{"source":"security@wordfence.com","url":"https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3488182%40robo-gallery&new=3488182%40robo-gallery&sfp_email=&sfph_mail="},{"source":"security@wordfence.com","url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/d8693b7d-693f-450a-89ef-e936a8813ca9?source=cve"}],"sourceIdentifier":"security@wordfence.com","vulnStatus":"Deferred","weaknesses":[{"description":[{"lang":"en","value":"CWE-79"}],"source":"security@wordfence.com","type":"Secondary"}]}