PHPNeeds attentionReference

CISA lists the original two flaws as known exploited. The separate session upload progress flaw was not in CISA's catalog on November 9.

Update the PHP runtime using the vendor advisory, and assess CVE-2026-115560 separately. Ask your hosting provider to confirm fixes if it manages PHP.

• PHP security advisory
• PHP session upload progress advisory

Affected sites can be compromised before sign-in. The July 20 review did not confirm active exploitation.

Check each site's WordPress version and apply the vendor's update or backport guidance. Keep compensating controls in place during remediation.

• WordPress security release