What’s Vulnerable › Vulnerabilities

CVE-2025-65956: Formwork CMS Has a Stored Cross-Site Scripting (XSS) Vulnerability in Blog Tags

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2025-11-26 · updated 2026-10-18
• Weakness: CWE-79

Description

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.

Affected products

• getformwork formwork: before 2.2.0 — fixed in 2.2.0

How to fix

Upgrade to a fixed version: getformwork formwork 2.2.0. Check the vendor advisory for mitigations.

References

• https://github.com/getformwork/formwork/commit/4abcd60ae7692b46d316f956b0b20fb85336f3b2
• https://github.com/getformwork/formwork/pull/791
• https://github.com/getformwork/formwork/security/advisories/GHSA-7j46-f57w-76pj
• https://github.com/getformwork/formwork/security/advisories/GHSA-7j46-f57w-76pj

Get alerted when CVE-2025-65956 or the next vulnerability affects your stack