DOUBLE YELLOW FLAG

WordPress core flaw allows remote takeover; update now, attacks seen

Original title:WordPress 7.1.4 Patches Unauthenticated Upgrade-Window RCE; Exploitation Attempts Detected After Release

What happened

WordPress 7.1.4 and backported releases fix 22 vulnerabilities, the worst being a race condition during core updates that can let unauthenticated attackers run code on the server. Wordfence reports attackers are already trying to exploit it, so confirm your site actually updated.

Who is affected

  • Anyone running a WordPress site
  • Agencies maintaining WordPress sites

What to do

Check Dashboard > Updates today and confirm you run 7.1.4 or the patched release for your branch; update manually if not. If you were unpatched, look for odd requests under wp-content/upgrade, unknown admins or plugins.

Affected products
ProductAffectedFixed in
WordPress Core4.7 〜 7.1.37.1.4(各系統: 7.0.8, 6.9.11, 6.8.12 ほか。4.7.39 まで)
Why this flag

サーバー乗っ取りに至る重大な欠陥で、第三者(Wordfence)が攻撃試行を観測。ただし成功には更新中の数秒の競合に勝つ必要があり、実際の悪用成功は未確認で、KEV等の公的確認もないため RED ではなく DOUBLE_YELLOW を提案。

Double yellow: great danger, be ready to stop — Severe impact with a public exploit or reported (unconfirmed) exploitation, including RED candidates under review.

Sources