CVE-2026-1809

MEDIUM EPSS 16.6%
Published Feb 11, 20264mo ago · Modified Apr 15, 20262mo ago
6.4 CVSS 3.1
Medium
Find Similar
Published Feb 11, 2026 4mo ago
Last Modified Apr 15, 2026 2mo ago

Description

The HTML Tag Shortcodes plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's shortcodes in all versions up to, and including, 1.1 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

CVSS Details

Base Score
6.4
Exploitability
3.1
Impact
2.7
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Changed
Confidentiality Low
Integrity Low
Availability None

Threat Intelligence

EPSS Exploit Probability
16.6% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-79 Cross-site Scripting Injection

References 5

  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/html-shortcodes/tags/1.1/html_shortcode.php#L100
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/html-shortcodes/tags/1.1/html_shortcode.php#L88
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/html-shortcodes/trunk/html_shortcode.php#L100
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/html-shortcodes/trunk/html_shortcode.php#L88
  • wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/846ccac2-ad56-4128-836d-2807c700c3fc?source=cve

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.