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CVE Record

CVE-2018-19620: ShowDoc 2.4.1 allows remote attackers to edit other users' notes by navigating with a modified page_id.

ShowDoc 2.4.1 allows remote attackers to edit other users' notes by navigating with a modified page_id.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

ShowDoc 2.4.1 has an access-control flaw that can let a remote attacker edit notes belonging to other users by changing a page identifier. For an organization using ShowDoc for internal documentation, the main business risk is unauthorized tampering with documentation, procedures, or shared knowledge.

Executive priority

Prioritize remediation if ShowDoc is used for operational, security, or customer-facing documentation. The flaw affects integrity rather than confirmed system takeover, but tampered internal documentation can still create real business risk.

Technical view

The CVE describes incorrect object-level authorization in ShowDoc 2.4.1 around page_id handling. A remote user can navigate with a modified page_id and edit another user's notes. The source bundle includes a public proof-of-concept reference, an upstream issue, and an upstream commit, but no CVSS, CWE, or fixed-version metadata.

Likely exposure

Exposure is limited to organizations running ShowDoc 2.4.1 or closely related vulnerable code paths. Risk is higher if ShowDoc is internet-facing or broadly accessible to untrusted users.

Exploitation context

The CVE references public GitHub proof-of-concept material, but the bundle does not show CISA KEV listing or confirmed active exploitation. Treat exploitability as publicly documented, not proven active in the wild.

Researcher notes

Evidence points to broken object-level authorization around page_id. Public CVE data lacks CVSS, CWE, affected CPEs, and fixed release details, so scope and severity should be confirmed against upstream ShowDoc guidance before broad conclusions.

Mitigation direction

  • Identify any ShowDoc 2.4.1 instances and their exposure level.
  • Review the upstream issue and commit for vendor remediation guidance.
  • Apply a supported vendor fix or upgrade path when available.
  • Restrict ShowDoc access to trusted networks or authenticated users.
  • Review backups and change history for unauthorized note edits.

Validation and detection

  • Confirm deployed ShowDoc versions and whether 2.4.1 is present.
  • Check whether page and note edits enforce owner or project authorization.
  • Review application logs for unusual cross-user note edit activity.
  • After remediation, verify unauthorized cross-user note edits are rejected.
  • Document any compensating controls if immediate patching is unavailable.
Prepared
Confidence
medium
Sources
5

Public sources used

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

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

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CVE-2018-19620 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
4Source links

CVSS and timeline data

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

Source materials

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.