CVE-2017-6819 — In WordPress before 4

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.

01What is this vulnerability?

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.

02Affected products

No structured affected-product list available — see references below for vendor advisories.

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2017-03-12T01:59:00.350
• Last modified: 2026-05-13T00:24:29.033

09References

• openwall.com — http://openwall.com/lists/oss-security/2017/03/06/7
• www.securityfocus.com — http://www.securityfocus.com/bid/96602
• www.securitytracker.com — http://www.securitytracker.com/id/1037959
• codex.wordpress.org — https://codex.wordpress.org/Version_4.7.3
• github.com — https://github.com/WordPress/WordPress/commit/263831a72d08556bc2f3a328673d95301a…
• sumofpwn.nl — https://sumofpwn.nl/advisory/2016/cross_site_request_forgery_in_wordpress_press_…
• wordpress.org — https://wordpress.org/news/2017/03/wordpress-4-7-3-security-and-maintenance-rele…
• wpvulndb.com — https://wpvulndb.com/vulnerabilities/8770
• openwall.com — http://openwall.com/lists/oss-security/2017/03/06/7
• www.securityfocus.com — http://www.securityfocus.com/bid/96602