CSRF in Mybb

CVE-2008-7082

MyBB (aka MyBulletinBoard) 1.4.3 includes the sensitive my_post_key parameter in URLs to moderation.php with the (1) mergeposts, (2) split, and (3) deleteposts actions, which allows remote attackers to steal the token and bypass the cross-site request forgery (CSRF) protection mechanism to hijack the authentication of moderators by reading the token from the HTTP Referer header.

Vulnerability class: CSRF (Cross-Site Request Forgery)

EPSS: 0.006 (45.1th percentile) — read the EPSS interpretation.

Affected products

  • Mybb — versions 1.4.3
  • N/a — versions n/a

Weakness classification (CWE)

References