What is CVE-2019-13175?

CVE-2019-13175 is a medium-severity vulnerability in Readthedocs Read The Docs, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 6.1/10. Published 2019-07-02.

How severe is CVE-2019-13175?

Medium severity. CVSS v3 base score is 6.1 out of 10.

Open Redirect in Readthedocs Read The Docs

CVE-2019-13175

Read the Docs before 3.5.1 has an Open Redirect if certain user-defined redirects are used. This affects private instances of Read the Docs (in addition to the public readthedocs.org web sites).

Vulnerability class: Open Redirect

Published 2019-07-02 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.009 (58.0th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 58th percentile — 58.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000

Affected products

Readthedocs Read The Docs

Weakness classification (CWE)

CWE-601 — URL Redirection to Untrusted Site (Open Redirect)

References

github.com/readthedocs/readthedocs.org/security/advisories/GHSA-2mw9-4c46-qrcv (Third Party Advisory)

Frequently asked questions

What is CVE-2019-13175?: CVE-2019-13175 is a medium-severity vulnerability in Readthedocs Read The Docs, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 6.1/10. Published 2019-07-02.
How severe is CVE-2019-13175?: Medium severity. CVSS v3 base score is 6.1 out of 10.