What is CVE-2026-25491?

## 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](https://craftcms.com/knowledge-base/securing-craft). ### 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: ```html ``` 5. Save the Entry Type, and you’ll be redirected back to the entry types table automatically. 6. Notice the alert fires when the entry types table renders.

What is the severity of CVE-2026-25491?

CVE-2026-25491 has a CVSS v3 score of 0, which is classified as Low severity.

Is there an exploit available for CVE-2026-25491?

No known public exploits are currently available for CVE-2026-25491.

Is there a patch available for CVE-2026-25491?

Yes, patches are available for CVE-2026-25491. Check the vendor advisories for update instructions.

CVE-2026-25491

Published: February 16, 2026

Last updated:16 hours ago (February 16, 2026)

Exploit: NoZero-day: NoPatch: YesTrend: Neutral

TL;DR

Updated February 16, 2026

CVE-2026-25491 is a low severity vulnerability with a CVSS score of 0.0. No known exploits currently, and patches are available.

Key Points

1Low severity (CVSS 0.0/10)
2No known public exploits
3Vendor patches are available

Severity Scores

CVSS v30.0

CVSS v20.0

Priority Score0.0

EPSS Score0.0

None

Exploitation LikelihoodMinimal

0.00%EPSS

Very low probability of exploitation

Monitor and patch as resources allow

0.00%

EPSS

0.0

CVSS

Exploit

Yes

Patch

Low Priority

no major risk factors

EPSS predicts the probability of exploitation in the next 30 days based on real-world threat data, complementing CVSS severity scores with actual risk assessment.

Description

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

Log in as an attacker.
Go to Settings -> Entry Types (/admin/settings/entry-types).
Create a new Entry Type.
Set Name to:

<img src=x onerror="alert('XSS-EntryTypes')" hidden>

Save the Entry Type, and you’ll be redirected back to the entry types table automatically.
Notice the alert fires when the entry types table renders.

CVSS v3 Breakdown

Attack Vector:-

Attack Complexity:-

Privileges Required:-

User Interaction:-

Scope:-

Confidentiality:-

Integrity:-

Availability:-

Patch References

Github.com Github.com

Trend Analysis

Neutral

Advisories

GitHub Advisory NVD

Cite This Page

APA Format

Strobes VI. (2026). CVE-2026-25491 - CVE Details and Analysis. Strobes VI. Retrieved February 17, 2026, from https://vi.strobes.co/cve/CVE-2026-25491

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