CVE-2022-47083: A PHP Object Injection vulnerability in the unserialize() function Spitfire CMS v1.0.475 allows authenticated

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HIGH 8.8DOWNGRADE

CVE-2022-47083 is a high-severity flaw (CVSS 8.8) affecting spitfire. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A PHP Object Injection vulnerability in the unserialize() function Spitfire CMS v1.0.475 allows authenticated attackers to execute arbitrary code via sending crafted requests to the web application.

Why this priority

High severity
EPSS top 3%: very likely to be exploited
Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	18.2% (top 3%)
CISA exploited list	No
Weakness	CWE-502
Published	2023-01-10
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: spitfire project

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

Am I affected?

Timeline

2023-01-10 17:15 UTCPublished CVE record published
2026-06-17 05:12 UTCUpdated Record last modified

spitfire project spitfire DOWNGRADE

Affected: 1.0475

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0475

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.0475 (Debian / Ubuntu)

apt-cache madison spitfire sudo apt install spitfire=<VERSION_BEFORE_1.0475> sudo apt-mark hold spitfire

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list spitfire sudo dnf downgrade spitfire-<VERSION_BEFORE_1.0475> sudo dnf versionlock add spitfire

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-2022-47083?

spitfire: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2022-47083 being exploited?

CVE-2022-47083 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-2022-47083 affect?

CVE-2022-47083 affects spitfire. Severity is high (CVSS 8.8). A PHP Object Injection vulnerability in the unserialize() function Spitfire CMS v1.0.475 allows authenticated attackers to execute arbitrary code via sending crafted requests to the web application.

How urgent is CVE-2022-47083?

Priority 60/100. High severity; EPSS top 3%: very likely to be exploited; Public exploit reference

Software pages

PHP vulnerabilities

References

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