CSRF in WordPress
CVE-2017-6819
In WordPress before 4.7.3, there is cross-site request forgery (CSRF) in Press This (wp-admin/includes/class-wp-press-this.php), leading to excessive use of server resources. The CSRF can trigger an outbound HTTP request for a large file that is then parsed by Press This.
Vulnerability class: CSRF (Cross-Site Request Forgery)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.022 (81.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 82nd percentile — 81.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.022 · newest: 0.022 · change: +0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.securityfocus.com/bid/96602 (VDB Entry, Third Party Advisory, vdb-entry)
- www.securitytracker.com/id/1037959 (VDB Entry, Third Party Advisory, vdb-entry)
- wpvulndb.com/vulnerabilities/8770 (Patch, Third Party Advisory)
- openwall.com/lists/oss-security/2017/03/06/7 (Exploit, Mailing List, Third Party Advisory)
- wordpress.org/news/2017/03/wordpress-4-7-3-security-and-maintenance-release/ (Patch, Release Notes, Vendor Advisory)
- codex.wordpress.org/Version_4.7.3 (Patch, Vendor Advisory)
- github.com/WordPress/WordPress/commit/263831a72d08556bc2f3a328673d95301a152829 (Patch, Third Party Advisory, Issue Tracking)
- sumofpwn.nl/advisory/2016/cross_site_request_forgery_in_wordpress_press_this_fu… (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2017-6819?
- CVE-2017-6819 is a medium-severity vulnerability in WordPress, classified under Cross-Site Request Forgery (CSRF). CVSS score: 6.5/10. Published 2017-03-12.
- How severe is CVE-2017-6819?
- Medium severity. CVSS v3 base score is 6.5 out of 10.
- Is CVE-2017-6819 known to be exploited?
- 6 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.