CVE-2022-0879: The Caldera Forms WordPress plugin before 1.9.7 does not validate and escape the cf-api parameter before outpu

Q: How do I fix CVE-2022-0879?

caldera forms: upgrade to 1.9.7. Exact commands for each OS are on this page.

Q: Is CVE-2022-0879 being exploited?

CVE-2022-0879 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-2022-0879 affect?

CVE-2022-0879 affects caldera forms. Severity is medium (CVSS 6.1). The Caldera Forms WordPress plugin before 1.9.7 does not validate and escape the cf-api parameter before outputting it back in the response, leading to a Reflected Cross-Site Scripting

Q: How urgent is CVE-2022-0879?

Priority 43/100. Public exploit reference

This month

MEDIUM 6.1UPGRADE

CVE-2022-0879 is a medium-severity flaw (CVSS 6.1) affecting caldera forms. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The Caldera Forms WordPress plugin before 1.9.7 does not validate and escape the cf-api parameter before outputting it back in the response, leading to a Reflected Cross-Site Scripting

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	6.1 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	1.2% (top 33%)
CISA exploited list	No
Weakness	CWE-79
Published	2022-04-18
Last modified	2026-06-17

Publisher (CNA): WPScan · Vendor: calderaforms

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

Am I affected?

Timeline

2022-04-18 18:15 UTCPublished CVE record published
2026-06-17 04:21 UTCUpdated Record last modified

calderaforms caldera forms UPGRADE

Affected: < 1.9.7

Fixed in: 1.9.7

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy caldera-forms || rpm -q caldera-forms || caldera-forms --version

2. UPGRADE to 1.9.7 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade caldera-forms

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade caldera-forms

Note

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

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Nuclei scan template: Caldera Forms < 1.9.7 - Reflected Cross-Site Scripting

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-2022-0879?

caldera forms: upgrade to 1.9.7. Exact commands for each OS are on this page.

Is CVE-2022-0879 being exploited?

CVE-2022-0879 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-2022-0879 affect?

CVE-2022-0879 affects caldera forms. Severity is medium (CVSS 6.1). The Caldera Forms WordPress plugin before 1.9.7 does not validate and escape the cf-api parameter before outputting it back in the response, leading to a Reflected Cross-Site Scripting

How urgent is CVE-2022-0879?

Priority 43/100. Public exploit reference

Software pages

WordPress vulnerabilities

Related CVEs

CVE-2021-24896 MEDIUM 4.8 UPGRADE The Caldera Forms WordPress plugin before 1.9.5 does not sanitise and escape the Form Name before outputting i

References

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