CVE-2017-7725

Name: CVE-2017-7725
Creator: NVD / NIST
Published: 2017-04-13T17:59:00.7+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 2.75%

Last modified Jun 17, 2026

CVE-2017-7725 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. concrete5 8.1.0 places incorrect trust in the HTTP Host header during caching, if the administrator did not define a "canonical" URL on installation of concrete5 using the "Advanced Options" settings. Remote attackers can make a GET request with any domain name in the Host header; this is stored and allows for arbitrary domains to be set for certain links displayed to subsequent visitors, potentially an XSS vector.. EPSS estimates a 2.75% chance of exploitation in the next 30 days.

Description

concrete5 8.1.0 places incorrect trust in the HTTP Host header during caching, if the administrator did not define a "canonical" URL on installation of concrete5 using the "Advanced Options" settings. Remote attackers can make a GET request with any domain name in the Host header; this is stored and allows for arbitrary domains to be set for certain links displayed to subsequent visitors, potentially an XSS vector.

Metrics

CVSS 3.1

6.1/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS Probability

2.75%

84.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Concretecms	Concrete Cms	8.1.0

References

http://hyp3rlinx.altervista.org/advisories/CONCRETE5-v8.1.0-HOST-HEADER-INJECTION.txtExploit, Third Party Advisory
http://www.securityfocus.com/bid/97649Third Party Advisory, VDB Entry
https://hackerone.com/reports/148300Exploit, Third Party Advisory, VDB Entry
https://packetstormsecurity.com/files/142145/concrete5-8.1.0-Host-Header-Injection.htmlExploit, Third Party Advisory, VDB Entry
https://www.exploit-db.com/exploits/41885/Exploit, Third Party Advisory, VDB Entry
http://hyp3rlinx.altervista.org/advisories/CONCRETE5-v8.1.0-HOST-HEADER-INJECTION.txtExploit, Third Party Advisory
http://www.securityfocus.com/bid/97649Third Party Advisory, VDB Entry
https://hackerone.com/reports/148300Exploit, Third Party Advisory, VDB Entry
https://packetstormsecurity.com/files/142145/concrete5-8.1.0-Host-Header-Injection.htmlExploit, Third Party Advisory, VDB Entry
https://www.exploit-db.com/exploits/41885/Exploit, Third Party Advisory, VDB Entry

Timeline

Published: Apr 13, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-7725?

How severe is CVE-2017-7725?

CVE-2017-7725 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 2.75% probability of exploitation in the next 30 days.

How do I fix CVE-2017-7725?

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-2017-7725?

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

Scan your code now

Source: NVD / NIST