CRITICALCVSS v3.1 9.8Vulnerability
CVE-2026-111687
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.
Properties
- Severity
- CRITICAL
- Nvd fetched at
- 2026-10-20T21:14:08.448323+00:00
- Epss score
- 0.01003
- Cvss score
- 9.8
- Cvss severity
- CRITICAL
- Retrieved at
- 2026-10-21T01:24:48+00:00
- Last source
- FIRST EPSS
- Score
- 9.8
- Cvss version
- 3.1
- Cve id
- CVE-2026-111687
- Cvss vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- First seen by Signal
- 2026-10-18T13:39:03+00:00
- Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Published at
- 2026-10-16T18:17:51.920
- Last modified
- 2026-10-16T20:17:22.260
- Epss percentile
- 0.6234
Related Entities (1)
HAS_WEAKNESS (1)
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