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  <id>https://vulnerability.circl.lu/sightings/feed</id>
  <title>Most recent sightings.</title>
  <updated>2026-06-26T07:46:51.812794+00:00</updated>
  <author>
    <name>Vulnerability-Lookup</name>
    <email>info@circl.lu</email>
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  <link href="https://vulnerability.circl.lu" rel="alternate"/>
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  <subtitle>Contains only the most 10 recent sightings.</subtitle>
  <entry>
    <id>https://vulnerability.circl.lu/sighting/4ea21d98-6f89-46c3-96f2-a0646b0d849e/export</id>
    <title>4ea21d98-6f89-46c3-96f2-a0646b0d849e</title>
    <updated>2026-06-26T07:46:51.820935+00:00</updated>
    <author>
      <name>Automation user</name>
      <uri>https://cve.circl.lu/user/automation</uri>
    </author>
    <content>{"uuid": "4ea21d98-6f89-46c3-96f2-a0646b0d849e", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "GHSA-W5M3-XH75-MP55", "type": "published-proof-of-concept", "source": "https://t.me/DarkWebInformer_CVEAlerts/5310", "content": "\ud83d\udd17 DarkWebInformer.com - Cyber Threat Intelligence\n\ud83d\udccc CVE ID: CVE-2023-26487\n\ud83d\udd25 CVSS Score: 6.5 (cvssV3_1, Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N)\n\ud83d\udd39 Description: Vega is a visualization grammar, a declarative format for creating, saving, and sharing interactive visualization designs.`lassoAppend' function accepts 3 arguments and internally invokes `push` function on the 1st argument specifying array consisting of 2nd and 3rd arguments as `push` call argument. The type of the 1st argument is supposed to be an array, but it's not enforced. This makes it possible to specify any object with a `push` function as the 1st argument, `push` function can be set to any function that can be access via `event.view` (no all such functions can be exploited due to invalid context or signature, but some can, e.g. `console.log`). The issue is that`lassoAppend` doesn't enforce proper types of its arguments. This issue opens various XSS vectors, but exact impact and severity depends on the environment (e.g. Core JS `setImmediate` polyfill basically allows `eval`-like functionality). This issue was patched in 5.23.0.\n\n\ud83d\udccf Published: 2023-03-03T23:47:28.486Z\n\ud83d\udccf Modified: 2025-02-25T15:01:54.570Z\n\ud83d\udd17 References:\n1. https://github.com/vega/vega/security/advisories/GHSA-w5m3-xh75-mp55\n2. https://github.com/vega/vega/commit/01adb034f24727d3bb321bbbb6696a7f4cd91689\n3. https://github.com/vega/vega/releases/tag/v5.23.0", "creation_timestamp": "2025-02-25T15:23:31.000000Z"}</content>
    <link href="https://vulnerability.circl.lu/sighting/4ea21d98-6f89-46c3-96f2-a0646b0d849e/export"/>
    <published>2025-02-25T15:23:31+00:00</published>
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