CVE-2026-110617: Auth Bypass (CVSS 4.8)

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.

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CVSS v3.1 Score

4.8

MEDIUM

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L

EPSS — Exploit Prediction

0.0064

Probability of exploitation

0.50%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-862 Missing Authorization

References

Other 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

Frequently Asked Questions

What is CVE-2026-110617? +

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. It has a CVSS v3.1 base score of 4.8 (MEDIUM).

How severe is CVE-2026-110617? +

CVE-2026-110617 has a CVSS v3.1 score of 4.8 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0064, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-110617? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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