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CVE-2019-16521

MEDIUM 6.1 CVSS 3.1
Published
October 16, 2019
Last modified
June 17, 2026
NVD status
Modified
Reported by
cve@mitre.org
Weakness
CWE-79
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Description

The broken-link-checker plugin through 1.11.8 for WordPress (aka Broken Link Checker) is susceptible to Reflected XSS due to improper encoding and insertion of an HTTP GET parameter into HTML. The filter function on the page listing all detected broken links can be exploited by providing an XSS payload in the s_filter GET parameter in a filter_id=search request. NOTE: this is an end-of-life product.

Affected WordPress components

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • n/a n/a — Versions not specified
  • managewp broken_link_checker — Up to and including 1.11.8

References

  • www.openwall.com http://www.openwall.com/lists/oss-security/2019/10/16/3 Exploit, Mailing List, Third Party Advisory
  • github.com https://github.com/sbaresearch/advisories/tree/public/2019/SBA-ADV-20190913-02_WordPress_Plugin_Broken_Link_Checker Exploit, Third Party Advisory
  • wordpress.org https://wordpress.org/plugins/broken-link-checker/#developers Product, Third Party Advisory
  • wpvulndb.com https://wpvulndb.com/vulnerabilities/9917 Third Party Advisory
  • nvd.nist.gov Official NVD record