{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-111687","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","state":"PUBLISHED","assignerShortName":"VulnCheck","dateReserved":"2026-10-16T14:31:19.910Z","datePublished":"2026-10-16T17:39:44.866Z","dateUpdated":"2026-10-16T19:05:43.558Z"},"containers":{"cna":{"providerMetadata":{"orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","shortName":"VulnCheck","dateUpdated":"2026-10-16T17:39:44.866Z"},"datePublic":"2026-10-15T00:00:00.000Z","title":"WeRSS (we-mp-rss) through 1.5.3 RCE via template Parameter in /rss Endpoint","descriptions":[{"lang":"en","value":"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."}],"problemTypes":[{"descriptions":[{"lang":"en","description":"Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection')","cweId":"CWE-95","type":"CWE"}]}],"affected":[{"vendor":"rachelos","product":"we-mp-rss","defaultStatus":"unaffected","versions":[{"version":"0","lessThanOrEqual":"1.5.3","status":"affected","versionType":"custom"}],"packageURL":"pkg:github/rachelos/we-mp-rss","repo":"https://github.com/rachelos/we-mp-rss"}],"metrics":[{"format":"CVSS","cvssV4_0":{"version":"4.0","vectorString":"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","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":9.3,"baseSeverity":"CRITICAL"}},{"format":"CVSS","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH","baseScore":9.8,"baseSeverity":"CRITICAL"}}],"references":[{"url":"https://hackmd.io/@hieuPenguinnn/werss-rss-template-unauth-ssti-rce","tags":["third-party-advisory"]},{"url":"https://github.com/rachelos/we-mp-rss/blob/v1.5.3/core/lax/template_parser.py#L1150-L1166","tags":["technical-description"]},{"url":"https://github.com/rachelos/we-mp-rss/blob/v1.5.3/apis/rss.py#L185-L198","tags":["technical-description"]},{"name":"VulnCheck Advisory: WeRSS (we-mp-rss) through 1.5.3 RCE via template Parameter in /rss Endpoint","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/werss-we-mp-rss-through-1.5.3-rce-via-template-parameter-in-rss-endpoint"}],"credits":[{"lang":"en","value":"hieuPenguinnn","type":"finder"}],"x_generator":{"engine":"vulncheck-endgame"}},"adp":[{"references":[{"url":"https://hackmd.io/@hieuPenguinnn/werss-rss-template-unauth-ssti-rce","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-16T19:04:57.256748Z","id":"CVE-2026-111687","options":[{"Exploitation":"poc"},{"Automatable":"yes"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-10-16T19:05:43.558Z"}}]}}