CVE-2018-12040

Public Exploit

Description

Reflected Cross-site scripting (XSS) vulnerability in the web profiler in SensioLabs Symfony 3.3.6 allows remote attackers to inject arbitrary web script or HTML via the "file" parameter, aka an _profiler/open?file= URI. NOTE: The vendor states "The XSS ... is in the web profiler, a tool that should never be deployed in production (so, we don't handle those issues as security issues).

Category

6.1
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.29%
Third-Party Advisory packetstormsecurity.com Third-Party Advisory securityfocus.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://packetstormsecurity.com/files/148125/SensioLabs-Symfony-3.3.6-Cross-Site-Scripting.html exploit vdb entry third party advisory
http://www.securityfocus.com/archive/1/542071/100/0/threaded mailing list exploit vdb entry third party advisory

Frequently Asked Questions

What is the severity of CVE-2018-12040?
CVE-2018-12040 has been scored as a medium severity vulnerability.
How to fix CVE-2018-12040?
To fix CVE-2018-12040, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2018-12040 being actively exploited in the wild?
It is possible that CVE-2018-12040 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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