Vulnerability in MediaWiki
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.077 (94.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 94th percentile — 94.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.077 · newest: 0.077 · change: 0.000
Affected products
- MediaWiki — versions 1.28.0, 1.28.1, 1.28.2
- Debian Linux — versions 9.0
- MediaWiki Before 1.27.4, 1.28.x 1.28.3, And 1.29.x 1.29.2 — versions MediaWiki before 1.27.4, 1.28.x before 1.28.3, and 1.29.x before 1.29.2
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.securitytracker.com/id/1039812 (VDB Entry, Third Party Advisory, vdb-entry)
- lists.wikimedia.org/pipermail/mediawiki-announce/2017-November/000216.html (Patch, Mailing List, Vendor Advisory)
- www.debian.org/security/2017/dsa-4036 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2017-8809?
- CVE-2017-8809 is a critical-severity vulnerability in MediaWiki, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 9.8/10. Published 2017-11-15.
- How severe is CVE-2017-8809?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2017-8809 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.