CVE-2015-7519

Name: CVE-2015-7519
Creator: NVD / NIST
Published: 2016-01-08T19:59:05.6+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 2.36%

Last modified Jun 17, 2026

CVE-2015-7519 is a vulnerability of currently unknown severity. agent/Core/Controller/SendRequest.cpp in Phusion Passenger before 4.0.60 and 5.0.x before 5.0.22, when used in Apache integration mode or in standalone mode without a filtering proxy, allows remote attackers to spoof headers passed to applications by using an _ (underscore) character instead of a - (dash) character in an HTTP header, as demonstrated by an X_User header.. EPSS estimates a 2.36% chance of exploitation in the next 30 days.

Description

agent/Core/Controller/SendRequest.cpp in Phusion Passenger before 4.0.60 and 5.0.x before 5.0.22, when used in Apache integration mode or in standalone mode without a filtering proxy, allows remote attackers to spoof headers passed to applications by using an _ (underscore) character instead of a - (dash) character in an HTTP header, as demonstrated by an X_User header.

Metrics

EPSS Probability

2.36%

81.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
Phusionpassenger	Phusion Passenger	<= 4.0.59
Phusionpassenger	Phusion Passenger	5.0.0
Phusionpassenger	Phusion Passenger	5.0.1
Phusionpassenger	Phusion Passenger	5.0.2
Phusionpassenger	Phusion Passenger	5.0.3
Phusionpassenger	Phusion Passenger	5.0.4
Phusionpassenger	Phusion Passenger	5.0.5
Phusionpassenger	Phusion Passenger	5.0.6
Phusionpassenger	Phusion Passenger	5.0.7
Phusionpassenger	Phusion Passenger	5.0.8
Phusionpassenger	Phusion Passenger	5.0.9
Phusionpassenger	Phusion Passenger	5.0.10
Phusionpassenger	Phusion Passenger	5.0.11
Phusionpassenger	Phusion Passenger	5.0.12
Phusionpassenger	Phusion Passenger	5.0.13
Phusionpassenger	Phusion Passenger	5.0.14
Phusionpassenger	Phusion Passenger	5.0.15
Phusionpassenger	Phusion Passenger	5.0.16
Phusionpassenger	Phusion Passenger	5.0.17
Phusionpassenger	Phusion Passenger	5.0.18
Phusionpassenger	Phusion Passenger	5.0.19
Phusionpassenger	Phusion Passenger	5.0.20
Phusionpassenger	Phusion Passenger	5.0.21

References

Timeline

Published: Jan 8, 2016
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2015-7519?

How severe is CVE-2015-7519?

Severity scoring for CVE-2015-7519 is pending analysis. The EPSS model estimates a 2.36% probability of exploitation in the next 30 days.

How do I fix CVE-2015-7519?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2015-7519?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST