VulnerabilityModified
CVE-2021-30458
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.
MEDIUM 6.1EPSS 0.98%
Does this matter?
Lower severity and a low EPSS score (0.98%). Track it; it rarely justifies an emergency change on its own.
Description
An issue was discovered in Wikimedia Parsoid before 0.11.1 and 0.12.x before 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.
- CVSS 3.1
- 6.1 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- EPSS
- 0.98% probability · 60th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-79
- Affected
- wikimedia/parsoid
- Source
- cve@mitre.org
References
- https://phabricator.wikimedia.org/T279451Issue Tracking, Vendor Advisory
- https://security.gentoo.org/glsa/202107-40Third Party Advisory
- https://www.mediawiki.org/wiki/ParsoidVendor Advisory
- https://phabricator.wikimedia.org/T279451Issue Tracking, Vendor Advisory
- https://security.gentoo.org/glsa/202107-40Third Party Advisory
- https://www.mediawiki.org/wiki/ParsoidVendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.