CVE-2019-16521

· MEDIUMModified

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CVSS v3.1

6.1

EPSS

1.40%

Published

Oct 16, 2019

Modified

Nov 21, 2024

Public PoC / Exploit (1)

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Links to public security research (Exploit-DB, Nuclei, Trickest, GitHub) for defensive use only.

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.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Weaknesses (CWE)

CWE-79

Affected Products (1)

managewp · broken_link_checkervulnerable

References (8)

http://www.openwall.com/lists/oss-security/2019/10/16/3

ExploitMailing ListThird Party Advisory

https://github.com/sbaresearch/advisories/tree/public/2019/SBA-ADV-20190913-02_WordPress_Plugin_Broken_Link_Checker

ExploitThird Party Advisory

https://wordpress.org/plugins/broken-link-checker/#developers