XSS in Formwork Project
CVE-2025-65956
Formwork is a flat file-based Content Management System (CMS). Prior to version 2.2.0, inserting unsanitized data into the blog tag field results in stored cross‑site scripting (XSS). Any user with credentials to the Formwork CMS who accesses or edits an affected blog post will have attacker‑controlled script executed in their browser. The issue is persistent and impacts privileged administrative workflows. This issue has been patched in version 2.2.0.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.002 (9.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 9th percentile — 9.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
- Formwork Project
- Getformwork Formwork — versions < 2.2.0
Weakness classification (CWE)
References
- github.com/getformwork/formwork/security/advisories/GHSA-7j46-f57w-76pj (Exploit, Third Party Advisory)
- github.com/getformwork/formwork/pull/791 (Patch, Issue Tracking)
- github.com/getformwork/formwork/commit/4abcd60ae7692b46d316f956b0b20fb85336f3b2 (Patch)
Frequently asked questions
- What is CVE-2025-65956?
- CVE-2025-65956 is a medium-severity vulnerability in Formwork Project, classified under Cross-site Scripting. CVSS score: 6.5/10. Published 2025-11-26.
- How severe is CVE-2025-65956?
- Medium severity. CVSS v3 base score is 6.5 out of 10.