CVE-2018-11502: An issue was discovered in the Moderator Log Notes plugin 1.1 for MyBB

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MEDIUM 6.5DOWNGRADE

CVE-2018-11502 is a medium-severity flaw (CVSS 6.5) affecting moderator log 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 Moderator Log Notes plugin 1.1 for MyBB. It allows moderators to save notes and display them in a list in the modCP. An attacker can remotely delete all mod notes and mod note logs in the modCP and ACP via CSRF.

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	1.9% (top 20%)
CISA exploited list	No
Weakness	CWE-352
Published	2018-08-24
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: moderator log notes project

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

Am I affected?

Timeline

2018-08-24 21:29 UTCPublished CVE record published
2026-06-17 01:36 UTCUpdated Record last modified

moderator log notes project moderator log 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 moderator-log-notes || rpm -q moderator-log-notes || moderator-log-notes --version

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

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

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

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

Public exploits and detection

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

Exploit-DB: MyBB Moderator Log Notes Plugin 1.1 - Cross-Site Request Forgery

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-2018-11502?

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

Is CVE-2018-11502 being exploited?

CVE-2018-11502 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-2018-11502 affect?

CVE-2018-11502 affects moderator log notes. Severity is medium (CVSS 6.5). An issue was discovered in the Moderator Log Notes plugin 1.1 for MyBB. It allows moderators to save notes and display them in a list in the modCP. An attacker can remotely delete all mod notes and mod note logs in the modCP and ACP via CSR

How urgent is CVE-2018-11502?

Priority 48/100. Public exploit reference

Related CVEs

CVE-2018-11430 MEDIUM 5.4 DOWNGRADE An issue was discovered in the Moderator Log Notes plugin 1.1 for MyBB

References

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