CVE-2025-11378Public exploitNetwork attack vector

Contributor configuration read and write via missing capability

Published Oct 18, 2025 · Updated Oct 18, 2025

Missing authorization in ShortPixel Image Optimizer 6.3.4 and earlier allows remote authenticated users to import or export site options. The shortpixel_ajaxRequest action routes settings/importexport requests after validating a Contributor-accessible nonce but never checks an administrative capability before accepting arbitrary import JSON or returning serialized configuration. Contributor-level access is sufficient to alter global CDN settings or disclose stored integration tokens, and malicious CDN settings can inject front-end scripts.

CVSS severity5.4
Medium
EPSS probability0.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authorization in ShortPixel Image Optimizer 6.3.4 and earlier allows remote authenticated users to import or export site options. The shortpixel_ajaxRequest action routes settings/importexport requests after validating a Contributor-accessible nonce but never checks an administrative capability before accepting arbitrary import JSON or returning serialized configuration. Contributor-level access is sufficient to alter global CDN settings or disclose stored integration tokens, and malicious CDN settings can inject front-end scripts.

The record

CVE
CVE-2025-11378
Published
Oct 18, 2025
Updated
Oct 18, 2025
Vendor
ShortPixel
Product
ShortPixel Image Optimizer
Classifications
CWE-862
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 18, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 18, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=* <=6.3.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

ShortPixel · ShortPixel Image Optimizerversion=* <=6.3.4

Published CVSS scores

5.4WordfenceCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

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.

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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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-862Missing Authorization

Public exploit references

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

Technologies

Your stack

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Your stack

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