CVE-2017-5542

Description

Cross-site scripting (XSS) vulnerability in template/usererror.missing_extension.php in Symphony CMS before 2.6.10 allows remote attackers to inject arbitrary web script or HTML via the existing-folder parameter.

Category

6.1
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.27%
Vendor Advisory github.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.securityfocus.com/bid/95686 vdb entry third party advisory
https://github.com/symphonycms/symphony-2/releases/tag/2.6.10 release notes
https://github.com/symphonycms/symphony-2/issues/2639 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2017-5542?
CVE-2017-5542 has been scored as a medium severity vulnerability.
How to fix CVE-2017-5542?
To fix CVE-2017-5542, 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-2017-5542 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2017-5542 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.