vulnwire
6.1med

CVE-2017-77251 exploit

Concrete CMS vulnerable to cross-site scripting (XSS)

Also known as GHSA-2mvg-c6mg-3q63

Published 9 y ago · modified 4 mo ago · JSON

CVSS
6.1
v3.1 · NVD
CISA KEV
No
not known exploited
EPSS
2.8%
percentile 86%
Public exploits
1
Exploit-DB

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.

Exploit prediction (EPSS)

2.75% probability of exploitation in the next 30 days, higher than 86% of all scored CVEs.

Exploits and detections

  • EDB-41885 Concrete5 CMS 8.1.0 - 'Host' Header Injection · webapps · 2017-04-14

CVSS scores

Assigned byVersionScoreVector
NVD3.16.1CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
NVD2.04.3AV:N/AC:M/Au:N/C:N/I:P/A:N
GitHub3.16.1CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected packages

EcosystemPackageAffectedFixed in
packagistconcrete5/concrete5
<=8.1.0
no fix listed

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation

References

Sources

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.