CVE-2026-2277
rexCrawler <= 1.0.15 - Reflected Cross-Site Scripting via 'url' and 'regex' Parameters
CVSS Score
6.1
EPSS Score
0.0%
EPSS Percentile
0th
The rexCrawler plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'url' and 'regex' parameters in the search-pattern tester page in all versions up to, and including, 1.0.15 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick an administrator into performing an action such as clicking on a link. This only affects multi-site installations and installations where unfiltered_html has been disabled.
| CWE | CWE-79 |
| Vendor | larsdrasmussen |
| Product | rexcrawler |
| Published | Mar 21, 2026 |
| Last Updated | Apr 8, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
larsdrasmussen / rexCrawler
0 ≤ 1.0.15
References
wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/2a17f466-bc4b-4668-8ff9-e8b316e3b5b7?source=cve plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/rexcrawler/trunk/admin_regex_test.php#L25 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/rexcrawler/tags/1.0.15/admin_regex_test.php#L25 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/rexcrawler/trunk/admin_regex_test.php#L29 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/rexcrawler/tags/1.0.15/admin_regex_test.php#L29
Credits
san6051