CVE-2021-3018: ipeak Infosystems ibexwebCMS (aka IPeakCMS) 3.5 is vulnerable to an unauthenticated Boolean-based SQL injectio

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CRITICAL 9.8REMOTEDOWNGRADE

CVE-2021-3018 is a critical-severity flaw (CVSS 9.8) affecting ipeakcms. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

ipeak Infosystems ibexwebCMS (aka IPeakCMS) 3.5 is vulnerable to an unauthenticated Boolean-based SQL injection via the id parameter on the /cms/print.php page.

Why this priority

Critical severity
EPSS top 3%: very likely to be exploited
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	18.6% (top 3%)
CISA exploited list	No
Weakness	CWE-89
Published	2021-01-05
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: ipeak

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

Am I affected?

Timeline

2021-01-05 05:15 UTCPublished CVE record published
2026-06-17 04:04 UTCUpdated Record last modified

ipeak ipeakcms DOWNGRADE

Affected: 3.5

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.5

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 3.5 (Debian / Ubuntu)

apt-cache madison ipeakcms sudo apt install ipeakcms=<VERSION_BEFORE_3.5> sudo apt-mark hold ipeakcms

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

dnf --showduplicates list ipeakcms sudo dnf downgrade ipeakcms-<VERSION_BEFORE_3.5> sudo dnf versionlock add ipeakcms

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 · root · FIXED · 6.40.04-6.fc46 · FEDORA-2026-deac340022 · source

sudo dnf upgrade --advisory=FEDORA-2026-deac340022

Fedora ELN · man-pages · FIXED · 6.20-1.eln159 · FEDORA-2026-f1f5fb11b4 · source

sudo dnf upgrade --advisory=FEDORA-2026-f1f5fb11b4

Public exploits and detection

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

Write-up: github.com/M4DM0e/m4dm0e.github.io/blob/gh-pages/_posts/2020-12-07-ipeak-cms-sqli.md
Write-up: m4dm0e.github.io/2020/12/07/ipeak-cms-sqli.html
Exploit-DB: IPeakCMS 3.5 - Boolean-based blind SQLi
Nuclei scan template: IPeakCMS 3.5 - SQL Injection

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-2021-3018?

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

Is CVE-2021-3018 being exploited?

CVE-2021-3018 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-2021-3018 affect?

CVE-2021-3018 affects ipeakcms. Severity is critical (CVSS 9.8). ipeak Infosystems ibexwebCMS (aka IPeakCMS) 3.5 is vulnerable to an unauthenticated Boolean-based SQL injection via the id parameter on the /cms/print.php page.

How urgent is CVE-2021-3018?

Priority 69/100. Critical severity; EPSS top 3%: very likely to be exploited; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

PHP vulnerabilities

References

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