CVE-2021-38351
OSD Subscribe <= 1.2.3 Reflected Cross-Site Scripting
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
OSD Subscribe <= 1.2.3 Reflected Cross-Site Scripting
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.
- Record
CVE-2021-38351- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
EUVDEUVD-2021-24804
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.
- Record
EUVD-2021-24804- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-mwwm-v9vx-c276No score
The OSD Subscribe WordPress plugin is vulnerable to Reflected Cross-Site Scripting via the...
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.
- Record
GHSA-mwwm-v9vx-c276- Weakness
- CWE-79
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2021-38351- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:N/I:P/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-38351 is a medium vulnerability (CVSS 6.1) in Osd Subscribe Subscribe, published September 10, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.90%, the 59th percentile. No source names a fixed version.