Reflected File Download Vulnerability in MediaWiki by Wikimedia
CVE-2017-8809

9.8CRITICAL

Key Information:

Vendor

Mediawiki
Status
Mediawiki Before 1.27.4, 1.28.x Before 1.28.3, And 1.29.x Before 1.29.2
Vendor
CVE Published:
15 November 2017

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2017-8809?

The vulnerability in api.php of MediaWiki allows attackers to exploit reflected file download techniques. This issue arises in specific versions before 1.27.4, 1.28.3, and 1.29.2, potentially enabling unauthorized users to force victims into downloading malicious files under certain circumstances. This poses a significant security risk, making it imperative for users to update to the latest versions to safeguard their environments.

Affected Version(s)

MediaWiki before 1.27.4, 1.28.x before 1.28.3, and 1.29.x before 1.29.2 MediaWiki before 1.27.4, 1.28.x before 1.28.3, and 1.29.x before 1.29.2

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2017-8809_MediaWiki_RFD
Created by motikan2010

References

http://www.securitytracker.com/id/1039812
vdb-entryx_refsource_SECTRACK
https://lists.wikimedia.org/pipermail/mediawiki-announce/...
x_refsource_CONFIRM
https://www.debian.org/security/2017/dsa-4036
vendor-advisoryx_refsource_DEBIAN

EPSS Score

7% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

.