XSS in Solspace Craft-Freeform
CVE-2026-26188
Solspace Freeform plugin for Craft CMS 5.x is a super flexible form-building tool. An authenticated, low-privilege user (able to create/edit forms) can inject arbitrary HTML/JS into the Craft Control Panel (CP) builder and integrations views. User-controlled form labels and integration metadata are rendered with dangerouslySetInnerHTML without sanitization, leading to stored XSS that executes when any admin views the builder/integration screens. This vulnerability is fixed in 5.14.7.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.003 (22.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 22nd percentile — 22.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.001
Affected products
- Solspace Craft-Freeform — versions >= 5.0.0, < 5.14.7
- Solspace Freeform
Weakness classification (CWE)
References
- github.com/solspace/craft-freeform/security/advisories/GHSA-jp3q-wwp3-pwv9 (Exploit, Vendor Advisory)
- github.com/solspace/craft-freeform/commit/b9adad6cdf1eba5400aae8b1ae39bd7d4d33a… (Patch)
- github.com/solspace/craft-freeform/releases/tag/v5.14.7 (Product, Release Notes)
Frequently asked questions
- What is CVE-2026-26188?
- CVE-2026-26188 is a medium-severity vulnerability in Solspace Craft-Freeform, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-02-12.
- How severe is CVE-2026-26188?
- Medium severity. CVSS v3 base score is 5.4 out of 10.