CVE-2018-25089: A vulnerability was found in glb Meetup Tag Extension 0.1 on MediaWiki

Routine

LOW 3.5DOWNGRADE

CVE-2018-25089 is a low-severity flaw (CVSS 3.5) affecting meetup tag. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability was found in glb Meetup Tag Extension 0.1 on MediaWiki. It has been rated as problematic. This issue affects some unknown processing of the component Link Attribute Handler. The manipulation leads to use of web link to untrusted target with window.opener access. Upgrading to version 0.2 is able to address this issue. The identifier of the patch is 850c726d6bbfe0bf270801fbb92a30babea4155c. It is recommended to upgrade the affected

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	3.5 (Low)
Attack vector	Adjacent network
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.6% (top 51%)
CISA exploited list	No
Weakness	CWE-1022
Published	2023-08-28
Last modified	2026-06-17

Publisher (CNA): VulDB · Vendor: glb

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

Am I affected?

Timeline

2023-08-28 13:15 UTCPublished CVE record published
2026-06-17 01:54 UTCUpdated Record last modified

glb meetup tag DOWNGRADE

Affected: 0.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.1

1. Check installed version

apt-cache policy meetup-tag || rpm -q meetup-tag || meetup-tag --version

2. No fixed release: DOWNGRADE to a release before 0.1 (Debian / Ubuntu)

apt-cache madison meetup-tag sudo apt install meetup-tag=<VERSION_BEFORE_0.1> sudo apt-mark hold meetup-tag

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

dnf --showduplicates list meetup-tag sudo dnf downgrade meetup-tag-<VERSION_BEFORE_0.1> sudo dnf versionlock add meetup-tag

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-2018-25089?

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

Is CVE-2018-25089 being exploited?

CVE-2018-25089 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-2018-25089 affect?

CVE-2018-25089 affects meetup tag. Severity is low (CVSS 3.5). A vulnerability was found in glb Meetup Tag Extension 0.1 on MediaWiki. It has been rated as problematic. This issue affects some unknown processing of the component Link Attribute Handler. The manipulation leads to use of web link to untru

How urgent is CVE-2018-25089?

Priority 25/100. No elevated risk signals yet.

References

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