CVE-2026-29014: MetInfo CMS versions 7.9, 8.0, and 8.1 contain an unauthenticated PHP code injection vulnerability that allows

Q: How do I fix CVE-2026-29014?

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

Q: Is CVE-2026-29014 being exploited?

CVE-2026-29014 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-2026-29014 affect?

CVE-2026-29014 affects metinfo. Severity is critical (CVSS 9.8). MetInfo CMS versions 7.9, 8.0, and 8.1 contain an unauthenticated PHP code injection vulnerability that allows remote attackers to execute arbitrary code by sending crafted requests with malicious PHP code. Attackers can exploit insufficien

Q: How urgent is CVE-2026-29014?

Priority 72/100. Critical severity; EPSS top 1%: very likely to be exploited; Public exploit reference; CISA SSVC: automatable with total technical impact; Remotely exploitable, no login, no user action

This week

CRITICAL 9.8REMOTEDOWNGRADE

CVE-2026-29014 is a critical-severity flaw (CVSS 9.8) affecting metinfo. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

MetInfo CMS versions 7.9, 8.0, and 8.1 contain an unauthenticated PHP code injection vulnerability that allows remote attackers to execute arbitrary code by sending crafted requests with malicious PHP code. Attackers can exploit insufficient input neutralization in the execution path to achieve remote code execution and gain full control over the affected server.

Why this priority

Critical severity
EPSS top 1%: very likely to be exploited
Public exploit reference
CISA SSVC: automatable with total technical impact
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	39.5% (top 1%)
CISA exploited list	No
Weakness	CWE-94
Published	2026-04-01
Last modified	2026-06-17

Publisher (CNA): VulnCheck · Vendor: metinfo

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

Am I affected?

Timeline

2026-04-01 13:16 UTCPublished CVE record published
2026-06-17 10:29 UTCUpdated Record last modified

metinfo metinfo DOWNGRADE

Affected: 7.9 · 8.0.0 · 8.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 7.9

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 7.9 (Debian / Ubuntu)

apt-cache madison metinfo sudo apt install metinfo=<VERSION_BEFORE_7.9> sudo apt-mark hold metinfo

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

dnf --showduplicates list metinfo sudo dnf downgrade metinfo-<VERSION_BEFORE_7.9> sudo dnf versionlock add metinfo

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.

Exact fixes by distribution

A distro patch exists: prefer upgrading over downgrading.

Fedora 46 · python-googleapis-common-protos · FIXED · 1.75.5-1.fc46~bootstrap · FEDORA-2026-d911c4c4e6 · source

sudo dnf upgrade --advisory=FEDORA-2026-d911c4c4e6

Fedora ELN · see advisory · FIXED · FEDORA-2026-e3987c278f · source

sudo dnf upgrade --advisory=FEDORA-2026-e3987c278f

Public exploits and detection

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

GitHub PoC: kandasirah/php-rce-2026 (0 stars)
Write-up: karmainsecurity.com/KIS-2026-06
Write-up: websec.net/blog/cve-2026-29014-metinfo-cms-unauthenticated-php-code-injection-69cdc290c14a
Nuclei scan template: MetInfo CMS <= 8.1 - Remote Code Execution

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-2026-29014?

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

Is CVE-2026-29014 being exploited?

CVE-2026-29014 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-2026-29014 affect?

CVE-2026-29014 affects metinfo. Severity is critical (CVSS 9.8). MetInfo CMS versions 7.9, 8.0, and 8.1 contain an unauthenticated PHP code injection vulnerability that allows remote attackers to execute arbitrary code by sending crafted requests with malicious PHP code. Attackers can exploit insufficien

How urgent is CVE-2026-29014?

Priority 72/100. Critical severity; EPSS top 1%: very likely to be exploited; Public exploit reference; CISA SSVC: automatable with total technical impact; Remotely exploitable, no login, no user action

Software pages

PHP vulnerabilities

References

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