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CVE-2018-6550: Monstra CMS allows script injection via page title

CVE-2018-6550 · published 8 years ago

Summary

The Monstra content management system (up to version 3.0.4) lets an attacker place malicious code in a page title that is shown in the admin area. This could let a attacker run code in the browser of anyone managing the site, potentially stealing data or changing settings. Upgrade to a newer version of Monstra CMS or apply the available patch to fix the problem.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software

Vendor	Product	Affected versions
monstra	monstra	<= 3.0.4 `cpe:2.3:a:monstra:monstra::::::::`

Original advisory text

Monstra CMS through 3.0.4 has XSS in the title function in plugins/box/pages/pages.plugin.php via a page title to admin/index.php.

References

https://github.com/monstra-cms/monstra/commit/388ab412035474068758df6b07e7e06852... Patch Third Party Advisory
https://github.com/monstra-cms/monstra/issues/427 Exploit Third Party Advisory

Fix within

Internet-facing 60 days

Internal At next upgrade

Not known to be exploited
Needs hands-on effort to exploit (estimated)
Gives an attacker partial control (estimated)

Severity

5.4 Medium

Exploitation

<1% chance of attack within 30 days

Type

CWE-79Cross-site Scripting (XSS)

Timeline

Published2 Feb 2018

Updated4 Nov 2026

First seen29 Sep 2026

Sources

CVE-2018-6550 · NVD

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