cve.nowby Sazabi
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CVE-2026-111687

WeRSS (we-mp-rss) through 1.5.3 RCE via template Parameter in /rss Endpoint

Published
Last modified
Status
published
Known exploitation
Not listed in CISA KEV
Public exploit
None on Exploit-DB
CISA SSVC
  • Exploitation: poc
  • Automatable: yes
  • Technical impact: total
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Decision points from CISA's Vulnrichment, assessed (SSVC 2.0.3).

SSVC documentation

Summary

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 versions

  • rachelos we-mp-rss

    through 1.5.3

References 4

hackmd.io

GitHub · rachelos/we-mp-rss

vulncheck.com