CVE-2026-49777Known exploitationPublic exploitNetwork attack vector

Unauthenticated command execution via crafted cache headers

Published Jun 5, 2026 · Updated Jun 5, 2026

Backdoor code in Product Slider Pro for WooCommerce before 3.5.4 allows remote attackers to execute OS commands via crafted HTTP headers. The implanted request path accepts a magic X-Cache-Status value and executes a base64-encoded shell expression supplied through X-Cache-Key. The compromised plugin must be installed on a reachable WordPress site, but exploitation requires neither a WordPress account nor user interaction.

CVSS severity10.0
Critical
EPSS probability1.66%
Next 30 days · Sep 16, 2026
Known exploitationReported
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Backdoor code in Product Slider Pro for WooCommerce before 3.5.4 allows remote attackers to execute OS commands via crafted HTTP headers. The implanted request path accepts a magic X-Cache-Status value and executes a base64-encoded shell expression supplied through X-Cache-Key. The compromised plugin must be installed on a reachable WordPress site, but exploitation requires neither a WordPress account nor user interaction.

The record

CVE
CVE-2026-49777
Published
Jun 5, 2026
Updated
Jun 5, 2026
Vendor
ShapedPlugin LLC
Product
Product Slider for WooCommerce Pro
Classifications
CWE-1284, CAPEC-523, T1059, T1195.002, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 5, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 5, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=n/a <3.5.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

ShapedPlugin LLC · Product Slider for WooCommerce Proversion=n/a <3.5.3

Published CVSS scores

10.0GitHub Advisory DatabaseCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationReported
Public exploitPublished

Weakness, pattern, technique

CWE-1284Improper Validation of Specified Quantity in Input
CAPEC-523Malicious Software Implanted
T1059Command and Scripting Interpreter
T1195.002Compromise Software Supply Chain
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Reported exploitation

Technologies

Your stack

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Your stack

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