High severity · published Jan 24, 2026
CVE-2026-0800
User Submitted Posts – Enable Users to Submit Posts from the Front End <= 20251210 - Unauthenticated Stored Cross-Site Scripting via Custom Field
7.2
CVSS
0.2%
EPSS
No
On KEV
Description
The User Submitted Posts – Enable Users to Submit Posts from the Front End plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the custom fields in all versions up to, and including, 20251210 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 16% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
US
User Submitted Posts – Enable Users to Submit Posts from the Front End · specialk
through 20251210 · source: vendor
Affected product
US
User Submitted Posts – Enable Users to Submit Posts from the Front End
specialk
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-0800
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-0800
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/changeset/3436859/user-submitted-posts
www.wordfence.com
https://www.wordfence.com/threat-intel/vulnerabilities/id/1ec907bc-bd10-4dc5-be35-4f2aaf5ef444?source=cve
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4.4
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