WeRSS (we-mp-rss) through 1.5.3 RCE via template Parameter in /rss Endpoint
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.
CVE-2026-111687
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-111687
we-mp-rss
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://github.com/rachelos/we-mp-rss",
"vendor": "rachelos",
"product": "we-mp-rss",
"versions": [
{
"status": "affected",
"version": "0",
"versionType": "custom",
"lessThanOrEqual": "1.5.3"
}
],
"packageURL": "pkg:github/rachelos/we-mp-rss",
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-111687
Source reference:
/cveMetadata/cveId
Publisher severity
critical
Source reference: /containers/cna/metrics
- Event
- #33130 · Revision 1
- Added to Heist Feed
- Publisher date