CVE-2015-9439

MEDIUM 4.8CVE-2015-9439 · Published 26/09/2019 · updated 17/06/2026

In short

CVE-2015-9439 is a MEDIUM (CVSS 4.8) vulnerability affecting addthis (addthis).
Chance of exploitation in the next 30 days (EPSS): 0.98%, higher than 62.4% of all vulnerabilities.
Fix: update to 5.0.13 or later.

Package	Affected versions	Patched versions
addthis addthis	`< 5.0.13`	`5.0.13`

Description

The addthis plugin before 5.0.13 for WordPress has CSRF with resultant XSS via the wp-admin/options-general.php?page=addthis_social_widget pubid parameter.

References

blog.cinu.pl/2015/11/php-static-code-analysis-vs-top-1000-wordpress-plugins.html · Third Party Advisory
wordpress.org/plugins/addthis · Product
wpvulndb.com/vulnerabilities/8246 · Third Party Advisory

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