CVE-2026-26188Public exploitNetwork attack vector

Stored XSS via unsanitized control-panel metadata

Published Feb 12, 2026 · Updated Feb 12, 2026

Stored XSS in Solspace Freeform for Craft 5.0.0 through 5.14.6 allows remote authenticated users to execute JavaScript in a CP user's browser. The React control-panel builder and integrations views pass saved form labels, section labels, and integration metadata to raw HTML rendering without sufficient sanitization. The attacker needs Craft control-panel permission to edit Freeform forms or integrations, and execution occurs when another control-panel user opens an affected view, enabling actions or data access within that victim's session.

CVSS severity5.1
Medium
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Stored XSS in Solspace Freeform for Craft 5.0.0 through 5.14.6 allows remote authenticated users to execute JavaScript in a CP user's browser. The React control-panel builder and integrations views pass saved form labels, section labels, and integration metadata to raw HTML rendering without sufficient sanitization. The attacker needs Craft control-panel permission to edit Freeform forms or integrations, and execution occurs when another control-panel user opens an affected view, enabling actions or data access within that victim's session.

The record

CVE
CVE-2026-26188
Published
Feb 12, 2026
Updated
Feb 12, 2026
Vendor
Solspace
Product
Freeform for Craft
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 12, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 12, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=>= 5.0.0, < 5.14.7

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Solspace · Freeform for Craftversion=>= 5.0.0, < 5.14.7

Published CVSS scores

5.1GitHub, Inc.CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
5.4GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007Command and Scripting Interpreter: JavaScript/JScript

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo