CVE-2025-52122: Freeform 5.0.0 to before 5.10.16, a plugin for CraftCMS, contains an Server-side template injection (SSTI) vul

This week

CRITICAL 9.8REMOTEUPGRADE

CVE-2025-52122 is a critical-severity flaw (CVSS 9.8) affecting freeform. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Freeform 5.0.0 to before 5.10.16, a plugin for CraftCMS, contains an Server-side template injection (SSTI) vulnerability, resulting in arbitrary code injection for all users that have access to editing a form (submission title).

Why this priority

Critical severity
Public exploit reference
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.6% (top 51%)
CISA exploited list	No
Weakness	CWE-94, CWE-1336
Published	2025-08-27
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: solspace

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-08-27 15:15 UTCPublished CVE record published
2026-06-17 09:36 UTCUpdated Record last modified

solspace freeform UPGRADE

Affected: >= 5.0.0 and < 5.10.16

Fixed in: 5.10.16

Safe to downgrade to: a release before 5.0.0

1. Check installed version

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

2. UPGRADE to 5.10.16 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade freeform

Note

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

3. If no update is available yet, DOWNGRADE to a release before 5.0.0 (Debian / Ubuntu)

apt-cache madison freeform sudo apt install freeform=<VERSION_BEFORE_5.0.0> sudo apt-mark hold freeform

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list freeform sudo dnf downgrade freeform-<VERSION_BEFORE_5.0.0> sudo dnf versionlock add freeform

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

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-2025-52122?

freeform: upgrade to 5.10.16. Exact commands for each OS are on this page.

Is CVE-2025-52122 being exploited?

CVE-2025-52122 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-2025-52122 affect?

CVE-2025-52122 affects freeform. Severity is critical (CVSS 9.8). Freeform 5.0.0 to before 5.10.16, a plugin for CraftCMS, contains an Server-side template injection (SSTI) vulnerability, resulting in arbitrary code injection for all users that have access to editing a form (submission title).

How urgent is CVE-2025-52122?

Priority 57/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

Related CVEs

CVE-2026-26188 MEDIUM 5.4 UPGRADE Solspace Freeform plugin for Craft CMS 5.x is a super flexible form-building tool

References

← Back to latest CVEs