{"id":"CVE-2026-111687","revision":"faec29f11c924ca39ae488282632bfef","records":[{"revision":"faec29f11c924ca39ae488282632bfef","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-111687","aliases":[],"title":"WeRSS (we-mp-rss) through 1.5.3 RCE via template Parameter in /rss Endpoint","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.","state":0,"publishedAt":"2026-10-16T17:39:44.866+00:00","modifiedAt":"2026-10-16T19:05:43.558+00:00","affected":[{"ecosystem":"Vendor product","name":"we-mp-rss","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"rachelos\",\n                    \"product\": \"we-mp-rss\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"versions\": [\n                        {\n                            \"version\": \"0\",\n                            \"lessThanOrEqual\": \"1.5.3\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"custom\"\n                        }\n                    ],\n                    \"packageURL\": \"pkg:github/rachelos/we-mp-rss\",\n                    \"repo\": \"https://github.com/rachelos/we-mp-rss\"\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","score":9.3,"severity":"CRITICAL"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8,"severity":"CRITICAL"}],"references":["https://hackmd.io/@hieuPenguinnn/werss-rss-template-unauth-ssti-rce","https://github.com/rachelos/we-mp-rss/blob/v1.5.3/core/lax/template_parser.py#L1150-L1166","https://github.com/rachelos/we-mp-rss/blob/v1.5.3/apis/rss.py#L185-L198","https://www.vulncheck.com/advisories/werss-we-mp-rss-through-1.5.3-rce-via-template-parameter-in-rss-endpoint"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-111687","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-111687","identifiers":["CVE-2026-111687"]},"retained":false,"historicalAffected":[]}],"coverage":[]}