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CVE-2026-25491

Craft has a Stored XSS in Entry Types Name

1.9 LowFix available

Craft is a platform for creating digital experiences. From 5.0.0-RC1 to 5.8.21, Craft has a stored XSS via Entry Type names. The name is not sanitized when displayed in the Entry Types list. This vulnerability is fixed in 5.8.22.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
High
User interaction
Passive

What an attacker can affect

Confidentiality
Low
Integrity
Low
Availability
None

Exploit likelihood

0.35%Up 0.3 points since Feb 10, 2026
90%50%10%1%

What each source reports

CVE List Score used 1.9

Craft has a Stored XSS in Entry Types Name

Craft is a platform for creating digital experiences. From 5.0.0-RC1 to 5.8.21, Craft has a stored XSS via Entry Type names. The name is not sanitized when displayed in the Entry Types list. This vulnerability is fixed in 5.8.22.

Record
CVE-2026-25491
CVSS 4.0
1.9 LowCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
Weakness
CWE-79
Updated
2026-11-02
EUVDEUVD-2026-6836 1.9

Craft is a platform for creating digital experiences. From 5.0.0-RC1 to 5.8.21, Craft has a stored XSS via Entry Type names. The name is not sanitized when displayed in the Entry Types list. This vulnerability is fixed in 5.8.22.

Record
EUVD-2026-6836
CVSS 4.0
1.9 LowCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
Updated
2026-11-02
GitHub AdvisoriesGHSA-7pr4-wx9w-mqwr 1.9

Craft CMS Vulnerable to Stored XSS in Entry Types Name

Summary

Stored XSS via Entry Type names. The name is not sanitized when displayed in the Entry Types list.

Proof of Concept

Required Permissions (Attacker)

  • Admin access (only admins have access to the settings page)
  • allowAdminChanges is enabled in production, which is against our security recommendations.

Steps to Reproduce

  1. Log in as an attacker.
  2. Go to Settings -> Entry Types (/admin/settings/entry-types).
  3. Create a new Entry Type.
  4. Set Name to:
<img src=x onerror="alert('XSS-EntryTypes')" hidden>
  1. Save the Entry Type, and you’ll be redirected back to the entry types table automatically.
  2. Notice the alert fires when the entry types table renders.
Record
GHSA-7pr4-wx9w-mqwr
CVSS 4.0
1.9 LowCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Weakness
CWE-79
Updated
2026-11-02
NVD 1.9

Craft is a platform for creating digital experiences. From 5.0.0-RC1 to 5.8.21, Craft has a stored XSS via Entry Type names. The name is not sanitized when displayed in the Entry Types list. This vulnerability is fixed in 5.8.22.

Record
CVE-2026-25491
CVSS 4.0
1.9 LowCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1
4.8 MediumCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
Weakness
CWE-79
Updated
2026-11-02
OSV 1.9

Craft has a Stored XSS in Entry Types Name

Craft is a platform for creating digital experiences. From 5.0.0-RC1 to 5.8.21, Craft has a stored XSS via Entry Type names. The name is not sanitized when displayed in the Entry Types list. This vulnerability is fixed in 5.8.22.

Record
CVE-2026-25491
CVSS 4.0
1.9 LowCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
Weakness
CWE-79
Updated
2026-11-02
OSVGHSA-7pr4-wx9w-mqwr 1.9

Craft CMS Vulnerable to Stored XSS in Entry Types Name

Summary

Stored XSS via Entry Type names. The name is not sanitized when displayed in the Entry Types list.

Proof of Concept

Required Permissions (Attacker)

  • Admin access (only admins have access to the settings page)
  • allowAdminChanges is enabled in production, which is against our security recommendations.

Steps to Reproduce

  1. Log in as an attacker.
  2. Go to Settings -> Entry Types (/admin/settings/entry-types).
  3. Create a new Entry Type.
  4. Set Name to:
<img src=x onerror="alert('XSS-EntryTypes')" hidden>
  1. Save the Entry Type, and you’ll be redirected back to the entry types table automatically.
  2. Notice the alert fires when the entry types table renders.
Record
GHSA-7pr4-wx9w-mqwr
CVSS 4.0
1.9 LowCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Weakness
CWE-79
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
craftcms/cms
Packagist
 5.0.0-RC1 to 5.8.21
5.8.22
craftcms/cms
Packagist
 5.0.0-RC1 up to 5.8.22, plus listed versions
5.0.05.0.15.0.25.0.35.0.4
Show 45 moreShow less
5.0.55.0.65.1.05.1.15.1.105.1.25.1.35.1.45.1.55.1.65.1.75.1.85.1.95.2.05.2.0-beta.15.2.0-beta.25.2.0-beta.35.2.0-beta.45.2.0-beta.55.2.0-beta.65.2.15.2.105.2.25.2.35.2.45.2.4.15.2.55.2.65.2.75.2.85.2.95.3.05.3.0-beta.15.3.0-beta.25.3.0.15.3.0.25.3.0.35.3.15.3.25.3.35.3.45.3.55.3.65.4.05.4.0.1
5.8.22

History

History
RecordedChangedSources
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

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

In short

CVE-2026-25491 is a low vulnerability (CVSS 1.9) in Craftcms Cms, published February 9, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.35%, the 29th percentile. Fixed in craftcms/cms 5.8.22.

References

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Left out here: 92 versions. The JSON record has them.

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