CVE-2021-46361

An issue in the Freemark Filter of Magnolia CMS v6.2.11 and below allows attackers to bypass security restrictions and execute arbitrary code via a crafted…

published February 11, 2022

CVSS
—
EPSS
3%
Percentile
86.3
In the wild
Unconfirmed
What it is

⚠️ A crafty FreeMarker payload is all it takes! This vulnerability in Magnolia CMS v6.2.11 and earlier lets attackers slip through security restrictions and execute arbitrary code without breaking a sweat. 🔥 Think of it like a sneaky waiter taking orders from a customer without verifying their identity — they might serve whatever they want instead of what was actually requested. This flaw creates a loophole where harmful commands can be executed as if they’re perfectly legitimate! An attacker could take control of your system and run any code they wish, potentially exposing sensitive data or altering content without authorization. It’s a serious risk that could lead to unauthorized access and data manipulation, making your system vulnerable to further attacks.

Put simply

Think of it like a sneaky waiter taking orders from a customer without verifying their identity — they might serve whatever they want instead of what was actually requested. This flaw creates a loophole where harmful commands can be executed as if they’re perfectly legitimate! This vulnerability arises from insufficient security checks in the FreeMarker Filter of Magnolia CMS, allowing arbitrary code execution through crafted payloads. Without proper validation, attackers can deliver malicious FreeMarker templates that the system processes as trusted input.

What to do

An attacker could take control of your system and run any code they wish, potentially exposing sensitive data or altering content without authorization. It’s a serious risk that could lead to unauthorized access and data manipulation, making your system vulnerable to further attacks. To safeguard your system, upgrade to Magnolia CMS v6.2.12 or later as soon as possible. Additionally, review your FreeMarker configurations and implement additional validation checks to ensure only safe input is processed. Stay vigilant! You’ve got this! By following these steps, you’ll tighten your defenses and keep your CMS secure. 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.02783 · 86.3th percentile
Published
2022-02-11T20:08Z
EPSS history
Timeline
  • 11 FEB 20:08Z
    An issue in the Freemark Filter of Magnolia CMS v6.2.11 and below allows attackers to bypass security restrictions and execute arbitrary code via a crafted…
    cvelistv5