Vulnerability CVE-2021-38351
Published: 2021-09-10

Description:
The OSD Subscribe WordPress plugin is vulnerable to Reflected Cross-Site Scripting via the osd_subscribe_message parameter found in the ~/options/osd_subscribe_options_subscribers.php file which allows attackers to inject arbitrary web scripts, in versions up to and including 1.2.3.

Type:

CWE-79

 (Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'))

CVSS2 => (AV:N/AC:M/Au:N/C:N/I:P/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.3/10
2.9/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
None
Partial
None
Affected software
Outsidesource -> Osd subscribe 

 References:
https://plugins.trac.wordpress.org/browser/osd-subscribe/tags/1.2.3/options/osd_subscribe_options_subscribers.php#L86
https://www.wordfence.com/vulnerability-advisories/#CVE-2021-38351
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