Critical severity · published Nov 15, 2017
CVE-2017-8809
api.php in MediaWiki before 1.27.4, 1.28.x before 1.28.3, and 1.29.x before 1.29.2 has a Reflected File Download vulnerability
9.8
CVSS
7.7%
EPSS
No
On KEV
Description
api.php in MediaWiki before 1.27.4, 1.28.x before 1.28.3, and 1.29.x before 1.29.2 has a Reflected File Download vulnerability.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)7.7% · higher than 95% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DL
Debian Linux · Debian
9.0 · source: NVD
ME
Mediawiki · Mediawiki
through 1.27.3; 1.28.0; 1.28.1; 1.28.2; 1.29.0; 1.29.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-8809
CVE.org
https://www.cve.org/CVERecord?id=CVE-2017-8809
Third Party Advisory
http://www.securitytracker.com/id/1039812
Mailing List
https://lists.wikimedia.org/pipermail/mediawiki-announce/2017-November/000216.html
Third Party Advisory
https://www.debian.org/security/2017/dsa-4036
More from Debian Linux
10.0
CVE-2025-32433
Erlang/OTP SSH Vulnerable to Pre-Authentication RCE
10.0
CVE-2025-24201
Apple Multiple Products WebKit Out-of-Bounds Write Vulnerability
10.0
CVE-2021-44228
Apache Log4j2 JNDI features do not protect against attacker controlled LDAP and other JNDI related endpoints
10.0
CVE-2015-3306
ProFTPD Improper Access Control Vulnerability
9.8
CVE-2026-24061
GNU InetUtils Argument Injection Vulnerability