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CVE Record

CVE-2019-13175: Read the Docs before 3.5.1 has an Open Redirect if certain user-defined redirects are used.

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).

UnknownCVSS not scoredNot KEV-listedUpdated
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

Read the Docs before 3.5.1 could allow some user-defined redirects to send visitors to an unintended external site. This is mainly a trust and phishing risk: attackers could abuse a trusted documentation domain to mislead users. The sources do not provide CVSS, CWE, or evidence of active exploitation.

Executive priority

Treat as a moderate web trust issue. It should be remediated in routine security maintenance, with higher priority for documentation portals used by customers or employees.

Technical view

CVE-2019-13175 is an open redirect in Read the Docs before 3.5.1 when certain user-defined redirects are present. The issue affects private Read the Docs instances as well as public readthedocs.org websites. Available sources do not describe affected configurations in detail or provide exploit mechanics.

Likely exposure

Exposure is most likely where Read the Docs versions before 3.5.1 are used and projects define redirects. Private deployments should be checked directly.

Exploitation context

The provided source bundle does not show KEV listing or cited evidence of active exploitation. Open redirects are commonly useful for phishing and trust abuse, not direct host compromise.

Researcher notes

The public record is sparse: no CVSS vector, CWE mapping, or detailed configuration criteria are included in the bundle. Keep validation focused on version, redirect usage, and vendor advisory details.

Mitigation direction

  • Upgrade Read the Docs to version 3.5.1 or later.
  • Review the GitHub advisory for vendor-confirmed guidance.
  • Audit user-defined redirects for unexpected external destinations.
  • Remove or constrain risky redirects until upgraded.
  • Prioritize private instances exposed to untrusted users.

Validation and detection

  • Inventory Read the Docs versions across public and private deployments.
  • Identify projects using user-defined redirects.
  • Confirm upgraded instances report version 3.5.1 or later.
  • Review redirect configurations for external or ambiguous destinations.
  • Check web logs for unusual redirect-heavy traffic patterns.
Prepared
Confidence
medium
Sources
3

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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CVE-2019-13175 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.