Medium severity · published Dec 17, 2025
CVE-2025-13861
HTML Forms – Simple WordPress Forms Plugin <= 1.6.0 - Unauthenticated Stored Cross-Site Scripting
6.1
CVSS
0.3%
EPSS
No
On KEV
Description
The HTML Forms – Simple WordPress Forms Plugin for WordPress is vulnerable to Unauthenticated Stored Cross-Site Scripting in all versions up to and including 1.6.0 due to insufficient sanitization of fabricated file upload field metadata before displaying it in the WordPress admin dashboard. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute whenever an administrator accesses the form submissions page.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 17% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
HF
HTML Forms – Simple WordPress Forms Plugin · linksoftware
through 1.6.0 · source: vendor
Affected product
HF
HTML Forms – Simple WordPress Forms Plugin
linksoftware
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-13861
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-13861
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/html-forms/trunk/src/functions.php#L321
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/html-forms/trunk/src/functions.php#L357
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3419926%40html-forms%2Ftrunk&old=3407043%40html-forms%2Ftrunk&sfp_email=&sfph_mail=
www.wordfence.com
https://www.wordfence.com/threat-intel/vulnerabilities/id/52e2f1b9-d240-4813-9124-51bd6b047553?source=cve
More from HTML Forms – Simple WordPress Forms Plugin
4.4
CVE-2025-12125
HTML Forms <= 1.5.5 - Authenticated (Admin+) Stored Cross-Site Scripting