CVE-2024-4445Network attack vector

Subscriber-level stored XSS via unchecked settings updates

Published May 14, 2024 · Updated Apr 8, 2026

Missing authorization in WP Compress 6.20.01 and earlier allows remote authenticated users to store cross-site scripting in multisite settings. Several multisite settings-update functions accept requests without capability checks, allowing attacker-controlled values to be stored. Subscriber-level access and WordPress multisite are required; the bounded impact is unauthorized settings changes and stored cross-site scripting.

CVSS severity6.5
Medium
EPSS probability0.34%
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 WP Compress 6.20.01 and earlier allows remote authenticated users to store cross-site scripting in multisite settings. Several multisite settings-update functions accept requests without capability checks, allowing attacker-controlled values to be stored. Subscriber-level access and WordPress multisite are required; the bounded impact is unauthorized settings changes and stored cross-site scripting.

The record

CVE
CVE-2024-4445
Published
May 14, 2024
Updated
Apr 8, 2026
Vendor
WP Compress
Product
WP Compress – Instant Performance & Speed Optimization
Classifications
CWE-862, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 14, 2024CVE publishedPublication date reported by the CVE source.
  2. Apr 8, 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 <=6.20.01

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

WP Compress · WP Compress – Instant Performance & Speed Optimizationversion=0 <=6.20.01

Published CVSS scores

6.5WordfenceCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
4.3NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/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.

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-862Missing Authorization
T1059.007JavaScript/JScript

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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