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VMScore

CVE-2021-30458

Published: 09/04/2021 Updated: 08/12/2021
CVSS v2 Base Score: 4.3 | Impact Score: 2.9 | Exploitability Score: 8.6
CVSS v3 Base Score: 6.1 | Impact Score: 2.7 | Exploitability Score: 2.8
VMScore: 383
Vector: AV:N/AC:M/Au:N/C:N/I:P/A:N
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Vulnerability Summary

An issue exists in Wikimedia Parsoid prior to 0.11.1 and 0.12.x prior to 0.12.2. An attacker can send crafted wikitext that Utils/WTUtils.php will transform by using a <meta> tag, bypassing sanitization steps, and potentially allowing for XSS.

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wikimedia parsoid

Vendor Advisories

Arch Linux Issues:
An issue was discovered in MediaWiki before 13112 and 132x through 135x before 1352 Parsoid comment fostering allowed for inserting mostly arbitrary &lt;meta&gt; tags ...

References

CWE-79https://www.mediawiki.org/wiki/Parsoidhttps://phabricator.wikimedia.org/T279451https://security.gentoo.org/glsa/202107-40https://nvd.nist.govhttps://security.archlinux.org/CVE-2021-30458
VMScore
CVSSv2
CVSSv3
VMScore
Recommendations:
CVE-2020-4463CVE-2024-3400deserializationCVE-2024-21788CVE-2023-42433CVE-2024-21841CVE-2024-22095local file inclusionmemory leak
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