CVE•Published 2017-03-23•Modified 2026-05-13•1 article on news•5 live references•NVD data
CVE-2015-8623Mediawiki · Mediawiki
Vulnerability data via NVD (ingested)
CVSS v3.1
8.8
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS percentile
—
Weaknesses (CWE)
Description
The User::matchEditToken function in includes/User.php in MediaWiki before 1.23.12 and 1.24.x before 1.24.5 does not perform token comparison in constant time before returning, which allows remote attackers to guess the edit token and bypass CSRF protection via a timing attack, a different vulnerability than CVE-2015-8624.
Timeline
Published 2017-03-23
Modified 2026-05-13
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).
Shodan · vuln tag90 hosts
vuln:CVE-2015-8623Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · product
product:"Mediawiki Mediawiki"All exposed Mediawiki Mediawiki instances — cross-reference with the CVE's affected-version range.
Shodan · banner/body mention
http.html:"Mediawiki"HTTP body or banner mentions "Mediawiki" — catches deploys Shodan didn't identify as a product.
More intel sources (5)
Shodan report
vuln:CVE-2015-8623Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2015-8623Censys host search filtered to this CVE id.
grep.app
CVE-2015-8623Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2015-8623GitHub code search for direct mentions.
Google dork
"CVE-2015-8623" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.