CVE-2023-1026Network attack vector

Authenticated post-listing disclosure via nonce-only authorization

Published Feb 28, 2023 · Updated Apr 8, 2026

Missing authorization in JoomUnited WP Meta SEO 4.5.3 and earlier allows remote authenticated users to list published posts by category. The listPostsCategory function treats a nonce available to every signed-in role as access control and performs no capability check before returning the listing. Subscriber-level access is sufficient; the disclosed consequence is limited to reading listings for posts that are already published.

CVSS severity4.3
Medium
EPSS probability0.58%
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 JoomUnited WP Meta SEO 4.5.3 and earlier allows remote authenticated users to list published posts by category. The listPostsCategory function treats a nonce available to every signed-in role as access control and performs no capability check before returning the listing. Subscriber-level access is sufficient; the disclosed consequence is limited to reading listings for posts that are already published.

The record

CVE
CVE-2023-1026
Published
Feb 28, 2023
Updated
Apr 8, 2026
Vendor
JoomUnited
Product
WP Meta SEO
Classifications
CWE-862
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 28, 2023CVE 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 <=4.5.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

JoomUnited · WP Meta SEOversion=0 <=4.5.3

Published CVSS scores

4.3WordfenceCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/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 exploitUnconfirmed

Weakness, pattern, technique

CWE-862Missing Authorization

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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