CVE-2019-12823

Craft CMS XSS Vulnerability

6.1 MediumFix available

Craft CMS before 3.1.31 does not properly filter XML feeds and thus allowing XSS.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: Required

What an attacker can affect

Confidentiality: Low
Integrity: Low
Availability: None

Exploit likelihood

0.94%Up 0.3 points since Apr 14, 2021

What each source reports

NVD Score used 6.1

Craft CMS before 3.1.31 does not properly filter XML feeds and thus allowing XSS.

Record: CVE-2019-12823
CVSS 3.1: 6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CVSS 2.0: 4.3 MediumAV:N/AC:M/Au:N/C:N/I:P/A:N
Weakness: CWE-79
Updated: 2026-11-02

CVE List No score

Craft CMS before 3.1.31 does not properly filter XML feeds and thus allowing XSS.

Record: CVE-2019-12823
Updated: 2026-11-02

EUVDEUVD-2022-5504 No score

Craft CMS before 3.1.31 does not properly filter XML feeds and thus allowing XSS.

Record: EUVD-2022-5504
Updated: 2026-11-03

GitHub AdvisoriesGHSA-w5q4-q7wp-qww6 6.1

Craft CMS XSS Vulnerability

Craft CMS before 3.1.31 does not properly filter XML feeds, thus allowing XSS.

Record: GHSA-w5q4-q7wp-qww6
CVSS 3.1: 6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weakness: CWE-79
Updated: 2026-11-02

OSV 6.1

Craft CMS before 3.1.31 does not properly filter XML feeds and thus allowing XSS.

Record: CVE-2019-12823
CVSS 3.1: 6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Updated: 2026-11-02

OSVGHSA-w5q4-q7wp-qww6 6.1

Craft CMS XSS Vulnerability

Craft CMS before 3.1.31 does not properly filter XML feeds, thus allowing XSS.

Record: GHSA-w5q4-q7wp-qww6
CVSS 3.1: 6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weakness: CWE-79
Updated: 2026-11-02

Affected products

craftcms craft cms

Affected packages

Affected packages
Package	Affected	Fixed
`craftcms/cms` Packagist	before 3.1.31	3.1.31
`craftcms/cms` Packagist	before 3.1.31, plus listed versions 1.0.26.11.2.0-alpha.23101.2.0-alpha.23121.2.0-alpha.23161.2.0-alpha.2318 Show 45 moreShow less 1.2.0-alpha.23191.2.0-alpha.23221.2.0-alpha.23231.2.0-alpha.23241.2.0-alpha.23281.2.0-alpha.23291.2.0-alpha.23321.2.23331.2.23351.2.23361.2.23371.2.23391.2.23581.2.23631.2.23671.2.23711.2.23751.2.23871.2.23921.2.23961.2.23991.3.0-alpha.23611.3.0-alpha.23661.3.0-alpha.23721.3.0-alpha.23741.3.0-alpha.23771.3.0-alpha.23781.3.0-alpha.23801.3.0-alpha.23881.3.0-alpha.23941.3.0-alpha.23971.3.0-alpha.24011.3.0-alpha.24021.3.0-alpha.24051.3.0-alpha.24641.3.24091.3.24101.3.24151.3.24161.3.24181.3.24191.3.24201.3.24221.3.24561.3.2459	3.1.31

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2019-12823 is a medium vulnerability (CVSS 6.1) in Craftcms Craft Cms, published June 18, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.94%, the 61st percentile. Fixed in craftcms/cms 3.1.31.

References

This page doesn't list everything

Left out here: 457 versions. The JSON record has them.