CVE-2016-10215: An issue was discovered in Fastspot BigTree bigtree-form-builder before 1.2

Q: How do I fix CVE-2016-10215?

bigtree-form-builder: upgrade to newer than 1.1. Exact commands for each OS are on this page.

Q: Is CVE-2016-10215 being exploited?

CVE-2016-10215 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-2016-10215 affect?

CVE-2016-10215 affects bigtree-form-builder. Severity is medium (CVSS 6.1). An issue was discovered in Fastspot BigTree bigtree-form-builder before 1.2. The vulnerability exists due to insufficient filtration of user-supplied data in multiple HTTP POST parameters passed to a "site/index.php/../../extensions/com.fas

Q: How urgent is CVE-2016-10215?

Priority 35/100. No elevated risk signals yet.

Routine

MEDIUM 6.1UPGRADE

CVE-2016-10215 is a medium-severity flaw (CVSS 6.1) affecting bigtree-form-builder. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An issue was discovered in Fastspot BigTree bigtree-form-builder before 1.2. The vulnerability exists due to insufficient filtration of user-supplied data in multiple HTTP POST parameters passed to a "site/index.php/../../extensions/com.fastspot.form-builder/ajax/redraw-field.php" URL. An attacker could execute arbitrary HTML and script code in a browser in the context of the vulnerable website.

Why this priority

No elevated risk signals yet

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	0.8% (top 44%)
CISA exploited list	No
Weakness	CWE-79
Published	2017-02-10
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: fastspot

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

Am I affected?

Timeline

2017-02-10 07:59 UTCPublished CVE record published
2026-06-17 00:39 UTCUpdated Record last modified

fastspot bigtree-form-builder UPGRADE

Affected: <= 1.1

Fixed in: newer than 1.1

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy bigtree-form-builder || rpm -q bigtree-form-builder || bigtree-form-builder --version

2. UPGRADE to newer than 1.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade bigtree-form-builder

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade bigtree-form-builder

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-2016-10215?

bigtree-form-builder: upgrade to newer than 1.1. Exact commands for each OS are on this page.

Is CVE-2016-10215 being exploited?

CVE-2016-10215 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-2016-10215 affect?

CVE-2016-10215 affects bigtree-form-builder. Severity is medium (CVSS 6.1). An issue was discovered in Fastspot BigTree bigtree-form-builder before 1.2. The vulnerability exists due to insufficient filtration of user-supplied data in multiple HTTP POST parameters passed to a "site/index.php/../../extensions/com.fas

How urgent is CVE-2016-10215?

Priority 35/100. No elevated risk signals yet.

Software pages

PHP vulnerabilities

References

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