MODX Revolution XSS via HTTP Host header

published 2017-05-18 9 y ago modified 2026-06-17 4 mo ago also GHSA-p2j4-vrgx-96qg , EUVD-2017-18010

cvss: 4.7; version 3.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.6%; EPSS 0.6% chance of exploitation in 30 days, percentile 51%
public exploits: 0; none known

In MODX Revolution before 2.5.7, an attacker might be able to trigger XSS by injecting a payload into the HTTP Host header of a request. This is exploitable only in conjunction with other issues such as Cache Poisoning.

Patch / fix

fixed in 1 links 2

packagist modx/revolution 2.5.7

github.com/modxcms/revolution#13426 pull request
citadelo.com/en/2017/04/modx-revolution-cms/ advisory

Exploit prediction

0.65% chance of exploitation in the next 30 days, higher than 51% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

citadelo.com https://citadelo.com/en/2017/04/modx-revolution-cms/ referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	3.0	4.7	CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N
NVD	2.0	2.6	AV:N/AC:H/Au:N/C:N/I:P/A:N
GitHub	3.0	4.7	CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected packages

ecosystem	package	affected	fixed in
packagist	modx/revolution	<2.5.7	2.5.7

Classification

Weakness

CWE-79 Improper Neutralization of Input During Web Page Generation

References

github.com /modxcms/revolution/pull/13426
web, patch, vendor-advisory
citadelo.com /en/2017/04/modx-revolution-cms/
exploit, patch, third-party-advisory
nvd.nist.gov /vuln/detail/CVE-2017-9071
advisory
citadelo.com /en/2017/04/modx-revolution-cms
web
github.com /modxcms/revolution
package

Sources

CVE List CVE-2017-9071
GitHub Advisory GHSA-p2j4-vrgx-96qg
NVD CVE-2017-9071

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.

Summary