Vulnerability record · CVE-2017-5542 · published 20 January 2017

CVE-2017-5542: Getsymphony symphony cross-site scripting vulnerability

Getsymphony · Symphony

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.

6.1 CVSS 3.0 Medium EPSS 1.2% · top 33.8% CWE-79 · Cross-site scripting

6.1CVSS 3.0 base score, v2 4.3

1.2%EPSS exploitation probability, 30 days

NoNot in CISA KEV

1Affected product versions listed by NVD

6References

17 Jun 2026Last modified by NVD

Description

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

Symphony Getsymphony

References

Link	Tags
http://www.securityfocus.com/bid/95686	Third Party AdvisoryVDB Entry
https://github.com/symphonycms/symphony-2/issues/2639	Vendor Advisory
https://github.com/symphonycms/symphony-2/releases/tag/2.6.10	Release Notes
http://www.securityfocus.com/bid/95686	Third Party AdvisoryVDB Entry
https://github.com/symphonycms/symphony-2/issues/2639	Vendor Advisory
https://github.com/symphonycms/symphony-2/releases/tag/2.6.10	Release Notes

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2017-5542), CISA KEV, FIRST EPSS (scores of 2026-10-01). This page is refreshed as NVD updates the record.