CVE-2018-11092: An issue was discovered in the Admin Notes plugin 1.1 for MyBB

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MEDIUM 6.5DOWNGRADE

CVE-2018-11092 is a medium-severity flaw (CVSS 6.5) affecting admin notes. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An issue was discovered in the Admin Notes plugin 1.1 for MyBB. CSRF allows an attacker to remotely delete all admin notes via an admin/index.php?empty=table (aka Clear Table) action.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.9% (top 39%)
CISA exploited list	No
Weakness	CWE-352
Published	2018-05-21
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: admin notes project

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

Am I affected?

Timeline

2018-05-21 14:29 UTCPublished CVE record published
2026-06-17 01:35 UTCUpdated Record last modified

admin notes project admin notes DOWNGRADE

Affected: 1.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.1

1. Check installed version

apt-cache policy admin-notes || rpm -q admin-notes || admin-notes --version

2. No fixed release: DOWNGRADE to a release before 1.1 (Debian / Ubuntu)

apt-cache madison admin-notes sudo apt install admin-notes=<VERSION_BEFORE_1.1> sudo apt-mark hold admin-notes

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

dnf --showduplicates list admin-notes sudo dnf downgrade admin-notes-<VERSION_BEFORE_1.1> sudo dnf versionlock add admin-notes

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-2018-11092?

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

Is CVE-2018-11092 being exploited?

CVE-2018-11092 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-2018-11092 affect?

CVE-2018-11092 affects admin notes. Severity is medium (CVSS 6.5). An issue was discovered in the Admin Notes plugin 1.1 for MyBB. CSRF allows an attacker to remotely delete all admin notes via an admin/index.php?empty=table (aka Clear Table) action.

How urgent is CVE-2018-11092?

Priority 43/100. Public exploit reference

Software pages

PHP vulnerabilities

References

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