CVE-2025-55043: MuraCMS through 10.1.10 contains a CSRF vulnerability in the bundle creation functionality (csettings.cfc createBundle method) that allows unauthenticated attac

MuraCMS through 10.1.10 contains a CSRF vulnerability in the bundle creation functionality (csettings.cfc createBundle method) that allows unauthenticated attac

MuraCMS through 10.1.10 contains a CSRF vulnerability in the bundle creation functionality (csettings.cfc createBundle method) that allows unauthenticated attackers to force administrators to create and save site bundles containing sensitive data to publicly accessible directories. This vulnerability enables complete data exfiltration including user accounts, password hashes, form submissions, email lists, plugins, and site content without administrator knowledge. This CSRF vulnerability enables complete data exfiltration from MuraCMS installations without requiring authentication. Attackers can force administrators to unknowingly create site bundles containing sensitive data, which are saved to publicly accessible web directories. The attack executes silently, leaving administrators unaware that confidential information has been compromised and is available for unauthorized download.

Description from the National Vulnerability Database, published by MITRE

What it means for a small business

If your business uses Mura CMS, install the vendor's update. If you're not sure whether you use it, ask whoever manages your computers.

How likely is an attack? The Exploit Prediction Scoring System, run by FIRST (the global association of security response teams), puts the odds of this one being exploited in the next 30 days at 0.17%, higher than 6% of CVEs. That’s low, but low isn’t zero, and the odds jump the day someone publishes an exploit. Scored October 29, 2026, updated daily.

Check your own setup

Website check: reads what your site runs from the outside (WordPress version, plugins it can see, old server software) and matches it against this database.
Server check: what your web server says about itself, and whether that version has known flaws.

Sources

Part of the Huttenlocher Technologies vulnerability database, refreshed twice a day from CISA and the NVD. The title, category and plain-language guidance are ours; check the linked record before acting on a detail. This is general guidance, not a review of your systems.

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