CVE-2026-2712Network attack vector

Subscriber-level Smush administration via unchecked heartbeat commands

Published Apr 10, 2026 · Updated Apr 10, 2026

Incorrect authorization in TeamUpdraft WP-Optimize 4.5.0 and earlier allows remote authenticated users to invoke admin-only Smush operations. The receive_heartbeat function passes attacker-selected commands directly to Updraft_Smush_Manager_Commands without capability checks, nonces, or the normal AJAX command allowlist. Subscriber-level access is sufficient to read Smush logs, change Smush options, start bulk image processing, or delete all backed-up original images.

CVSS severity5.4
Medium
EPSS probability0.43%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect authorization in TeamUpdraft WP-Optimize 4.5.0 and earlier allows remote authenticated users to invoke admin-only Smush operations. The receive_heartbeat function passes attacker-selected commands directly to Updraft_Smush_Manager_Commands without capability checks, nonces, or the normal AJAX command allowlist. Subscriber-level access is sufficient to read Smush logs, change Smush options, start bulk image processing, or delete all backed-up original images.

The record

CVE
CVE-2026-2712
Published
Apr 10, 2026
Updated
Apr 10, 2026
Vendor
Internal Link Juicer
Product
WP-Optimize
Classifications
CWE-863, T1565.001
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 10, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 10, 2026Record 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=0 <=4.5.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Internal Link Juicer · WP-Optimizeversion=0 <=4.5.0

Published CVSS scores

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

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 exploitUnconfirmed

Weakness, pattern, technique

CWE-863Incorrect Authorization
T1565.001Stored Data Manipulation

Public exploit references

No public exploit references are available in this record.

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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