Craft CMS XSS Vulnerability

published 2019-10-10 7y ago modified 2026-06-17 4mo ago also GHSA-f3xr-q258-h7m9 , EUVD-2022-3678

cvss: 6.1; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.8%; EPSS 0.8% chance of exploitation in 30 days, percentile 58%
public exploits: 0; none known

Craft CMS before 3.3.8 has stored XSS via a name field. This field is mishandled during site deletion.

Patch / fix

fixed in 2 links 1

packagist craftcms/cms 3.3.8
craftcms craft_cms 3.3.8

github.com/craftcms/cms@0ee66d2 commit

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Exploit prediction

0.84% chance of exploitation in the next 30 days, higher than 58% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
NVD	3.1	6.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
NVD	2.0	4.3	AV:N/AC:M/Au:N/C:N/I:P/A:N
GitHub	3.1	6.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected packages

ecosystem	package	affected	fixed in
packagist	craftcms/cms	<3.3.8	3.3.8

Classification

Weakness

CWE-79 Improper Neutralization of Input During Web Page Generation

References

github.com /craftcms/cms/commit/0ee66d29281af2b6c4f866e1437842c61983a672
web, patch
github.com /craftcms/cms/blob/develop/CHANGELOG-v3.md#338---2019-10-09
web, release-notes
nvd.nist.gov /vuln/detail/CVE-2019-17496
advisory
github.com /craftcms/cms
package

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.