https://vulnerability.circl.lu Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Wed, 30 Sep 2026 00:43:17 +0000 https://vulnerability.circl.lu/vuln/fkie_cve-2026-55692 <p>The EmbedVideo Extension is a MediaWiki extension which adds a parser function called #ev and various parser tags for embedding video clips from various video sharing services. Prior to 4.1.0, with the default $wgEmbedVideoRequireConsent configuration enabled, includes/EmbedService/EmbedHtmlFormatter.php places JSON returned through includes/EmbedService/AbstractEmbedService.php into the data-mw-iframeconfig attribute without safely escaping single quotes. Attacker-controlled archiveorg identifiers and wistia or sharepoint URLs accepted by the affected service validators can cause getUrl() output to terminate the attribute and inject event-handler attributes into the generated figure element. A user able to edit a wiki page can store JavaScript that executes in the wiki origin when visitors render the page. This issue is fixed in version 4.1.0.</p> <p>The EmbedVideo Extension is a MediaWiki extension which adds a parser function called #ev and various parser tags for embedding video clips from various video sharing services. Prior to 4.1.0, with the default $wgEmbedVideoRequireConsent configuration enabled, includes/EmbedService/EmbedHtmlFormatter.php places JSON returned through includes/EmbedService/AbstractEmbedService.php into the data-mw-iframeconfig attribute without safely escaping single quotes. Attacker-controlled archiveorg identifiers and wistia or sharepoint URLs accepted by the affected service validators can cause getUrl() output to terminate the attribute and inject event-handler attributes into the generated figure element. A user able to edit a wiki page can store JavaScript that executes in the wiki origin when visitors render the page. This issue is fixed in version 4.1.0.</p> https://vulnerability.circl.lu/vuln/fkie_cve-2026-55692 https://vulnerability.circl.lu/vuln/ghsa-5c7p-g73q-rpg5 <p><strong>Affected:</strong> Packagist: starcitizenwiki/embedvideo</p> <p>### Summary With $wgEmbedVideoRequireConsent enabled (the default), the urls for videos are stored in a json-ified data attribute`data-mw-iframeconfig`. When given a malformed url or id, the data-mw-iframeconfig attribute can be escaped via single quotes, allowing for html/javascript injection.</p> <p>### Details The sprintf [here](https://github.com/StarCitizenWiki/mediawiki-extensions-EmbedVideo/blob/a573a16d925ee0ea0d34b360856dc8ab0b88f822/includes/EmbedService/EmbedHtmlFormatter.php#L115-L120) adds the iframe config encoded as JSON [here](https://github.com/StarCitizenWiki/mediawiki-extensions-EmbedVideo/blob/a573a16d925ee0ea0d34b360856dc8ab0b88f822/includes/EmbedService/AbstractEmbedService.php#L518). When given a malicious url or id with a single quote, the `$this-&gt;getUrl()` call returns an unescaped payload that terminates the data-mw-iframeconfig attribute and allows for injecting attributes, including handlers, into the figure element. The id regex for the `archiveorg` service and the url regexes for the `wistia` and `sharepoint` services allow for single quotes to be introduced.</p> <p>### PoC A couple of examples across services ``` Input: &lt;embedvideo service=&#34;archiveorg&#34; id=&#34;x&#39; onmouseover=&#39;alert(document.domain)&#39; data-x=&#39;&#34;&gt;&lt;/embedvideo&gt;</p> <p>Renders: &lt;figure class=&#34;embedvideo&#34; data-service=&#34;archiveorg&#34; data-mw-iframeconfig=&#34;{&amp;quot;src&amp;quot;:&amp;quot;//archive.org/embed/x&#34; onmouseover=&#34;alert(document.domain)&#34; data-x=&#34;?autoplay=1&amp;quot;}&#34; style=&#34;width:640px&#34;&gt; &lt;div class=&#34;embedvideo-w…</p> <p><strong>Affected:</strong> Packagist: starcitizenwiki/embedvideo</p> <p>### Summary With $wgEmbedVideoRequireConsent enabled (the default), the urls for videos are stored in a json-ified data attribute`data-mw-iframeconfig`. When given a malformed url or id, the data-mw-iframeconfig attribute can be escaped via single quotes, allowing for html/javascript injection.</p> <p>### Details The sprintf [here](https://github.com/StarCitizenWiki/mediawiki-extensions-EmbedVideo/blob/a573a16d925ee0ea0d34b360856dc8ab0b88f822/includes/EmbedService/EmbedHtmlFormatter.php#L115-L120) adds the iframe config encoded as JSON [here](https://github.com/StarCitizenWiki/mediawiki-extensions-EmbedVideo/blob/a573a16d925ee0ea0d34b360856dc8ab0b88f822/includes/EmbedService/AbstractEmbedService.php#L518). When given a malicious url or id with a single quote, the `$this-&gt;getUrl()` call returns an unescaped payload that terminates the data-mw-iframeconfig attribute and allows for injecting attributes, including handlers, into the figure element. The id regex for the `archiveorg` service and the url regexes for the `wistia` and `sharepoint` services allow for single quotes to be introduced.</p> <p>### PoC A couple of examples across services ``` Input: &lt;embedvideo service=&#34;archiveorg&#34; id=&#34;x&#39; onmouseover=&#39;alert(document.domain)&#39; data-x=&#39;&#34;&gt;&lt;/embedvideo&gt;</p> <p>Renders: &lt;figure class=&#34;embedvideo&#34; data-service=&#34;archiveorg&#34; data-mw-iframeconfig=&#34;{&amp;quot;src&amp;quot;:&amp;quot;//archive.org/embed/x&#34; onmouseover=&#34;alert(document.domain)&#34; data-x=&#34;?autoplay=1&amp;quot;}&#34; style=&#34;width:640px&#34;&gt; &lt;div class=&#34;embedvideo-w…</p> https://vulnerability.circl.lu/vuln/ghsa-5c7p-g73q-rpg5