XSS in Sensiolabs Symfony

CVE-2013-4752

Symfony 2.0.X before 2.0.24, 2.1.X before 2.1.12, 2.2.X before 2.2.5, and 2.3.X before 2.3.3 have an issue in the HttpFoundation component. The Host header can be manipulated by an attacker when the framework is generating an absolute URL. A remote attacker could exploit this vulnerability to inject malicious content into the Web application page and conduct various attacks.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.023 (81.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2013-4752?
CVE-2013-4752 is a medium-severity vulnerability in Sensiolabs Symfony, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2020-01-02.
How severe is CVE-2013-4752?
Medium severity. CVSS v3 base score is 6.1 out of 10.
Is CVE-2013-4752 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.