Critical severity9.8NVD Advisory· Published Oct 16, 2026· Updated Oct 16, 2026
CVE-2026-111687
CVE-2026-111687
Description
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.
Affected products
1Patches
Vulnerability mechanics
References
4News mentions
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