CVE-2026-111687 [CRITICAL] – WeRSS (we-mp-rss) through 1.5.3 contains a remote code execution vulnerability that allows

WeRSS (we-mp-rss) through 1.5.3 contains a remote code execution vulnerability that allows unauthenticated attackers to run code via the template parameter of the public GET /rss/{feed_id} endpoint. Attackers can supply a non-built-in ext value and a {{=expression}} template whose object-subclass traversal bypasses the eval denylist to run OS commands as the service account.