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MitreCVE-2019-16521

HistoryOct 16, 2019 - 3:15 p.m.

CVE-2019-16521

2019-10-1615:15:15

CWE-79

mitre

web.nvd.nist.gov

cve-2019-16521

broken-link-checker

wordpress

plugin

reflected xss

improper encoding

http get parameter

CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:M/Au:N/C:N/I:P/A:N

CVSS3

6.1

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

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

EPSS

0.002

Percentile

59.1%

JSON

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 configurations

Nvd

Node

managewpbroken_link_checkerRange≤1.11.8wordpress

VendorProductVersionCPE
managewpbroken_link_checker*cpe:2.3:a:managewp:broken_link_checker:*:*:*:*:*:wordpress:*:*

Vendor	Product	Version	CPE
managewp	broken_link_checker	*	cpe:2.3:a:managewp:broken_link_checker::::::wordpress::*

References

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

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

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

wpvulndb.com/vulnerabilities/9917

CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:M/Au:N/C:N/I:P/A:N

CVSS3

6.1

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

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

EPSS

0.002

Percentile

59.1%

JSON

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