CVE-2015-4050

Published: Jun 2, 2015Updated: May 6, 2026 Sources: CVE List NVD GHSACWE-284

4.3MEDIUM

NVD MITRE

Description

FragmentListener in the HttpKernel component in Symfony 2.3.19 through 2.3.28, 2.4.9 through 2.4.10, 2.5.4 through 2.5.11, and 2.6.0 through 2.6.7, when ESI or SSI support enabled, does not check if the _controller attribute is set, which allows remote attackers to bypass URL signing and security rules by including (1) no hash or (2) an invalid hash in a request to /_fragment.

No summary for this CVE yet.

CVSS Vector Breakdown

Exploitability

AV:NAccess Vector

Network

AC:MAccess Complexity

Medium

Au:NAuthentication

None

Impact

C:NConfidentiality

None

I:PIntegrity

Partial

A:NAvailability

None

Open in CVSS calculator →

Weaknesses

CWE-284

Affected Products

package-ecosystem

oss-project

symfonyLibraryLibrary

OSS Libraries / generic-library

and 1 more affected products View all →

Exploitability

2 exploit sources identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details

Official Patch Available

Is your org exposed to CVE-2015-4050?Discuss checks for your systems with a specialist. Scope agreed before testing. Check my exposure

References

http://lists.fedoraproject.org/pipermail/package-announce/2015-June/159513.html

lists.fedoraproject.org

http://lists.fedoraproject.org/pipermail/package-announce/2015-June/159603.html

lists.fedoraproject.org

http://lists.fedoraproject.org/pipermail/package-announce/2015-June/159610.html

lists.fedoraproject.org

and 8 more references View all →

Unlock Complete Vulnerability Intelligence

Get the full picture for CVE-2015-4050 and every CVE in our database. Create a free account — no credit card required.

Create Free Account

Plain-language analysis

Impact assessment and exploitation scenario in plain English

Attack graph visualization

Interactive attack path and kill chain mapping

Exploit details & PoC links

ExploitDB, Metasploit, GitHub PoCs with direct links

Nuclei scanner templates

Ready-to-use vulnerability scanner templates

Full remediation guide

Patch instructions, workarounds, and compliance impact

Interactive AI chat

Ask questions about this vulnerability in natural language

Related vulnerabilities

Semantically similar CVEs and attack patterns

REST API & MCP access

Integrate vulnerability data into your workflows