STRLCPY/AllAboutBugBounty

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CVEs/2021/CVE-2021-36873.md

1	1		# CVE-2021-36873
2	2
3	3		## Description
4		-	Authenticated Persistent Cross-Site Scripting (XSS) vulnerability in WordPress iQ Block Country plugin (versions <= 1.2.11). Vulnerable parameter: &blockcountry_blockmessage.
	4	+	Authenticated Persistent Cross-Site Scripting (XSS) vulnerability in WordPress iQ Block Country plugin (versions <= 1.2.11). Vulnerable parameter: `&blockcountry_blockmessage`.
5	5
6	6		## CVSS (Vector and Score)
7	7		CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N - 5.5 MEDIUM
		skipped 9 lines
17	17
18	18		## Steps to Reproduce
19	19		1. Login as administrator
20		-	2.
	20	+	2. Go to http://localhost/wp-admin/options-general.php?page=iq-block-country%2Flibs%2Fblockcountry-settings.php
	21	+	3. Find `Message to display when people are blocked:` form
	22	+	4. Input `</textarea><script>alert(1)</script>`
	23	+	5. Scroll down and press `Save Changes` button
	24	+
	25	+	## Proof of Concept
	26	+	- Video
21	27
	28	+	> https://youtu.be/WtOiHY5R-t0
22	29
23		-	## Proof of Concept
24	30		- Image
25		-	- Video
	31	+	![image](https://user-images.githubusercontent.com/36522826/202700374-52d36350-adff-4fe3-b46d-21f08955e8c6.png)
	32	+