CVE-2026-110617: we-mp-rss through 1.5.3 Missing Authorization via Export File Download Endpoint

Severity: medium (CVSS 4.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-10-14 · updated 2026-10-16
Weakness: CWE-862

Description

we-mp-rss through 1.5.3 contains a missing authorization vulnerability in the /api/v1/wx/tools/export/download endpoint that allows unauthenticated attackers to download export archives because its authentication dependency is commented out. Attackers can supply an mp_id and guessable timestamp-based export filename to retrieve archives under data/docs, and set delete_after_download=true to delete them.

Affected products

rachelos we-mp-rss: through 1.5.3

References

https://github.com/rachelos/we-mp-rss
https://github.com/rachelos/we-mp-rss/blob/v1.5.3/apis/tools.py#L321-L376
https://hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/SyP4L62oGl
https://www.vulncheck.com/advisories/we-mp-rss-through-1.5.3-missing-authorization-via-export-file-download-endpoint
https://hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/SyP4L62oGl

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