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Vulnerabilities

Vulnerability · CVE-2026-2126

The User Submitted Posts – Enable Users to Submit Posts from the Front End plugin for WordPress is vulnerable to Incorrect Authorization in all versions up to, and including, 20260

Published Feb 18, 2026 · catalog updated Apr 8, 2026 · User Submitted Posts – Enable Users to Submit Posts from the Front End

Last checked Nov 13, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2026-2126. EPSS is 0.39%. Act only if a listed version of User Submitted Posts – Enable Users to Submit Posts from the Front End is installed.

Gaps on this record

  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
Medium5.3
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.39%
Remediation
Vendor / distro source
Affected products
vendor specialk User Submitted Posts – Enable Users to Submit Posts from the Front End 0 ≤20260113

The User Submitted Posts – Enable Users to Submit Posts from the Front End plugin for WordPress is vulnerable to Incorrect Authorization in all versions up to, and including, 20260113. This is due to the function accepting user-submitted category IDs from the POST body without validating them against the admin-configured allowed categories stored in . This makes it possible for unauthenticated attackers to assign submitted posts to arbitrary categories, including restricted ones, by crafting a direct POST request with manipulated values, bypassing the frontend category restrictions.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor specialk User Submitted Posts – Enable Users to Submit Posts from the Front End 0 ≤202601130 ≤20260113

How to fix CVE-2026-2126

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-2126. EPSS is 0.39%. Act only if a listed version of User Submitted Posts – Enable Users to Submit Posts from the Front End is installed.

Which versions are affected?

Compare what you have installed with specialk User Submitted Posts – Enable Users to Submit Posts from the Front End 0 ≤20260113 0 ≤20260113. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.39%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

WordPress security

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Feb 18, 2026 · EUVD

    Detected

    The User Submitted Posts – Enable Users to Submit Posts from the Front End plugin for WordPress is vulnerable to Incorrect Authorization in all versions up to, and including, 20260113. This is due to the function accepting user-submitted category IDs from the POST body without validating them against the admin-configured allowed categories stored in . This makes it possible for unauthenticated att

  2. Apr 8, 2026 · EUVD

    Updated

    The User Submitted Posts – Enable Users to Submit Posts from the Front End plugin for WordPress is vulnerable to Incorrect Authorization in all versions up to, and including, 20260113. This is due to the function accepting user-submitted category IDs from the POST body without validating them against the admin-configured allowed categories stored in . This makes it possible for unauthenticated att

Sources

  • CVE.orgVulnerability recordCVE-2026-2126

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-2126

    30-day exploitation probability 0.39%

    first.org
  • EUVDVulnerability recordEUVD-2026-8042

    The User Submitted Posts – Enable Users to Submit Posts from the Front End plugin for WordPress is vulnerable to Incorrect Authorization in all versions up to, and including, 20260113. This is due to the function accepting user-submitted category IDs from the POST body without va

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Nov 13, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSNov 7, 2026
  • CVE.orgNov 7, 2026
  • EUVDNov 7, 2026