CVE-2018-6550 — Monstra CMS through 3

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.

01What is this vulnerability?

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.

02Affected products

Vendor	Product	Versions
n	a / n/a	n/a

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2018-02-02T09:00:00.000Z
• Last modified: 2024-09-16T17:38:26.011Z

09References

• github.com — https://github.com/monstra-cms/monstra/commit/388ab412035474068758df6b07e7e06852…
• github.com — https://github.com/monstra-cms/monstra/issues/427