CVE-2018-13340: Gleez CMS 1.2.0 has CSRF, as demonstrated by a /page/add request.

This month

HIGH 8.8DOWNGRADE

CVE-2018-13340 is a high-severity flaw (CVSS 8.8) affecting gleez cms. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Gleez CMS 1.2.0 has CSRF, as demonstrated by a /page/add request.

Why this priority

High severity
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	None
User interaction	Required
EPSS exploit chance	0.7% (top 49%)
CISA exploited list	No
Weakness	CWE-352
Published	2018-07-05
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: gleeztech

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

Am I affected?

Timeline

2018-07-05 22:29 UTCPublished CVE record published
2026-06-17 01:39 UTCUpdated Record last modified

gleeztech gleez cms DOWNGRADE

Affected: 1.2.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.2.0

1. Check installed version

apt-cache policy gleez-cms || rpm -q gleez-cms || gleez-cms --version

2. No fixed release: DOWNGRADE to a release before 1.2.0 (Debian / Ubuntu)

apt-cache madison gleez-cms sudo apt install gleez-cms=<VERSION_BEFORE_1.2.0> sudo apt-mark hold gleez-cms

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

dnf --showduplicates list gleez-cms sudo dnf downgrade gleez-cms-<VERSION_BEFORE_1.2.0> sudo dnf versionlock add gleez-cms

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-2018-13340?

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

Is CVE-2018-13340 being exploited?

CVE-2018-13340 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-2018-13340 affect?

CVE-2018-13340 affects gleez cms. Severity is high (CVSS 8.8). Gleez CMS 1.2.0 has CSRF, as demonstrated by a /page/add request.

How urgent is CVE-2018-13340?

Priority 49/100. High severity; Public exploit reference

Related CVEs

CVE-2021-27312 CRITICAL 9.4 DOWNGRADE Server Side Request Forgery (SSRF) vulnerability in Gleez Cms 1.2.0, allows remote attackers to execute arbitr
CVE-2018-7035 MEDIUM 5.4 DOWNGRADE Cross-site scripting (XSS) vulnerability in Gleez CMS 1.2.0 and 2.0 might allow remote attackers (users) to in
CVE-2018-16703 MEDIUM 5.3 DOWNGRADE A vulnerability in the Gleez CMS 1.2.0 login page could allow an unauthenticated, remote attacker to perform m
CVE-2018-16347 MEDIUM 6.1 DOWNGRADE An issue was discovered in Gleez CMS v1.2.0
CVE-2018-15845 HIGH 8.8 DOWNGRADE There is a CSRF vulnerability that can add an administrator account in Gleez CMS 1.2.0 via admin/users/add.

References

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