CVE-2017-7725 json
Concrete CMS vulnerable to cross-site scripting (XSS)
published 2017-04-13 9 y ago modified 2026-06-17 4 mo ago also GHSA-2mvg-c6mg-3q63 , EUVD-2022-2017
- cvss
- 6.1
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 2.8%
- EPSS 2.8% chance of exploitation in 30 days, percentile 86%
- public exploits
- 1
- Exploit-DB
Summary
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.
Timeline
- Published
- First public exploit (EDB-41885)
Exploit prediction
2.75% chance of exploitation in the next 30 days, higher than 86% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- EDB-41885 Concrete5 CMS 8.1.0 - 'Host' Header Injection webapps, 2017-04-14
- hyp3rlinx.altervista.org http://hyp3rlinx.altervista.org/advisories/CONCRETE5-v8.1.0-HOST-HEADER-INJECTION.txt referenced PoC, tagged "exploit" by a source, unverified
- packetstormsecurity.com https://packetstormsecurity.com/files/142145/concrete5-8.1.0-Host-Header-Injection.html referenced PoC, tagged "exploit" by a source, unverified
- hackerone.com https://hackerone.com/reports/148300 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:N/I:P/A:N |
| GitHub | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| packagist | concrete5/concrete5 | <=8.1.0 |
no fix listed |
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
exploit-db.com
/exploits/41885/
exploit, third-party-advisory, vdb-entry
-
hyp3rlinx.altervista.org
/advisories/CONCRETE5-v8.1.0-HOST-HEADER-INJECTION.txt
web, exploit, third-party-advisory
-
packetstormsecurity.com
/files/142145/concrete5-8.1.0-Host-Header-Injection.html
web, exploit, third-party-advisory, vdb-entry
-
hackerone.com
/reports/148300
web, exploit, third-party-advisory, vdb-entry
-
securityfocus.com
/bid/97649
vdb-entry, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2017-7725
advisory
-
web.archive.org
/web/20210124030008/https://www.securityfocus.com/bid/97649
web
-
exploit-db.com
/exploits/41885
web
Sources
- CVE List CVE-2017-7725
- GitHub Advisory GHSA-2mvg-c6mg-3q63
- NVD CVE-2017-7725
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.