CVE-2025-65956: Formwork is a flat file-based Content Management System (CMS)

Q: How do I fix CVE-2025-65956?

formwork: upgrade to 2.2.0. Exact commands for each OS are on this page.

Q: Is CVE-2025-65956 being exploited?

CVE-2025-65956 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2025-65956 affect?

CVE-2025-65956 affects formwork. Severity is medium (CVSS 6.5). 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 access

Q: How urgent is CVE-2025-65956?

Priority 31/100. Public exploit reference

Routine

MEDIUM 6.5UPGRADE

CVE-2025-65956 is a medium-severity flaw (CVSS 6.5) affecting formwork. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.2% (top 88%)
CISA exploited list	No
Weakness	CWE-79
Published	2025-11-26
Last modified	2026-10-18

Publisher (CNA): GitHub, Inc. · Vendor: formwork project

Last updated 2026-10-18 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-11-26 00:15 UTCPublished CVE record published
2026-10-18 20:10 UTCUpdated Record last modified

formwork project formwork UPGRADE

Affected: < 2.2.0

Fixed in: 2.2.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy formwork || rpm -q formwork || formwork --version

2. UPGRADE to 2.2.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade formwork

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade formwork

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-65956?

formwork: upgrade to 2.2.0. Exact commands for each OS are on this page.

Is CVE-2025-65956 being exploited?

CVE-2025-65956 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-65956 affect?

CVE-2025-65956 affects formwork. Severity is medium (CVSS 6.5). 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 access

How urgent is CVE-2025-65956?

Priority 31/100. Public exploit reference

Related CVEs

CVE-2026-27198 HIGH 8.8 UPGRADE Formwork is a flat file-based Content Management System (CMS)
CVE-2024-37160 MEDIUM 4.8 UPGRADE Formwork is a flat file-based Content Management System (CMS)

References

← Back to latest CVEs