Easy Sticky Sidebar - Server-Side Request Forgery (SSRF) (CVE-2026-6089)

Q: Am I affected by this vulnerability?

You are affected if your site runs Easy Sticky Sidebar.

Q: How do I fix it?

Update Easy Sticky Sidebar to the latest available version. Where the vendor has not yet published a fix, remove or disable the plugin until they do. Until you can update, Request / payload inspection (WAF) in Hack Halt ProSecure contains this class of attack at the request layer.

Q: What can an attacker actually do?

This is a Server-Side Request Forgery (SSRF) flaw. An attacker who exploits it can make the server itself fetch a URL of their choosing, reaching internal services.

CVE-2026-6089

Vulnerability CVE-2026-6089 PLUGIN easy-sticky-sidebar MEDIUM

The WP CTA plugin for WordPress is vulnerable to Server-Side Request Forgery via the 'sticky_s_media' parameter in imported JSON files in all versions up to, and including, 2.1.2. This is due to the import_sidebars() function passing user-supplied URLs from imported JSON data to file_get_contents() with only FILTER_VALIDATE_URL validation (which allows internal IPs). This makes it possible for authenticated attackers, with Administrator-level access and above, to make web requests to arbitrary locations originating from the web application, which can be used to query and modify information from internal services. The response content is saved as a WordPress media attachment, making this a full-read SSRF.

CVE-2026-6089

MEDIUM CVSS 4.9 Published 2026-07-29 Updated 2026-07-30

AI Risk Moderate (51/100) Active Exploit: No strong signal Published Exploit: No public exploit references Priority: P4 Planned

Severity Band MEDIUM

CVSS Vector CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

Affected Components 3

Reference Links 3

AI Risk Engine Moderate (51/100)

Exploitability High

Active Exploitation No strong signal

Published Exploit Status No public exploit references

Threat Timeline

2026-07-29 CVE published and first recorded in the threat feed.
2026-07-30 Record updated with latest vulnerability metadata.
2026-07-31 AI technical context refreshed for mitigation and impact guidance.
Now Monitoring for follow-up changes, linked references, and new related CVEs.

AI Context

Machine-generated threat intelligence

AI Updated 40 days ago

AI enriched 40 days ago (2026-07-31 05:54 UTC)

Technical Summary

Potential Impact

Severity is MEDIUM (CVSS 4.9). Depending on deployment context, affected components may be exposed to unauthorized actions or data integrity risk.

Exploitability Assessment

Exploitability is assessed as High based on remote code execution potential.

Primary risk drivers: remote code execution potential

Mitigation Recommendations

Validate affected product versions, prioritize patching, and monitor references for vendor remediation guidance. If immediate patching is not possible, apply compensating controls and limit exposure of vulnerable surfaces.

Detection & Monitoring

Track authentication anomalies, unexpected file writes, and suspicious plugin API activity around affected components.

Business Impact Lens

AI risk score 51/100 (Moderate, High) with priority P4 Planned. Prioritize remediation where affected components process customer data, admin sessions, or Internet-exposed workflows.

Affected Products

Easy Sticky Sidebar PLUGIN · easy-sticky-sidebar Affected: >= 2.1.2, <= 2.1.2 Fixed version not specified

Wp Cta PLUGIN · wp-cta Affected: >= 2.1.2, <= 2.1.2 Fixed version not specified

WP CTA – Call Now Button, Sticky Button & Call to Action Builder PLUGIN · wp-cta-call-now-button-sticky-button-call-to-action-builder Affected: >= 2.1.2, <= 2.1.2 Fixed version not specified

References

What to do about this

Patch on your next cycle Worth fixing, but not ahead of other work.

Fix it

Update Easy Sticky Sidebar to the latest available version.

Where the vendor has not published a fix yet, disable the plugin until they do.

Cannot update today? Request / payload inspection (WAF) in Hack Halt ProSecure blocks this class of attack before WordPress processes the request.

Inspect request parameters and bodies for injection, traversal and file-inclusion payloads, and refuse the request rather than logging it.

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