CVE-2018-25132: MyBB Trending Widget Plugin 1.2 contains a cross-site scripting vulnerability that allows attackers to inject

Routine

MEDIUM 6.1DOWNGRADE

CVE-2018-25132 is a medium-severity flaw (CVSS 6.1) affecting trending widget. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

MyBB Trending Widget Plugin 1.2 contains a cross-site scripting vulnerability that allows attackers to inject malicious scripts through thread titles. Attackers can modify thread titles with script payloads that will execute when other users view the trending widget.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	6.1 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.2% (top 84%)
CISA exploited list	No
Weakness	CWE-79
Published	2026-01-23
Last modified	2026-06-17

Publisher (CNA): VulnCheck · Vendor: mybb

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

Am I affected?

Timeline

2026-01-23 17:15 UTCPublished CVE record published
2026-06-17 01:54 UTCUpdated Record last modified

mybb trending widget DOWNGRADE

Affected: 1.2

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.2

1. Check installed version

apt-cache policy trending-widget || rpm -q trending-widget || trending-widget --version

2. No fixed release: DOWNGRADE to a release before 1.2 (Debian / Ubuntu)

apt-cache madison trending-widget sudo apt install trending-widget=<VERSION_BEFORE_1.2> sudo apt-mark hold trending-widget

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

dnf --showduplicates list trending-widget sudo dnf downgrade trending-widget-<VERSION_BEFORE_1.2> sudo dnf versionlock add trending-widget

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-2018-25132?

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

Is CVE-2018-25132 being exploited?

CVE-2018-25132 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-2018-25132 affect?

CVE-2018-25132 affects trending widget. Severity is medium (CVSS 6.1). MyBB Trending Widget Plugin 1.2 contains a cross-site scripting vulnerability that allows attackers to inject malicious scripts through thread titles. Attackers can modify thread titles with script payloads that will execute when other user

How urgent is CVE-2018-25132?

Priority 30/100. Public exploit reference

References

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