VDB-182468 · CVE-2021-38351 · GCVE-0-2021-38351

OSD Subscribe Plugin up to 1.2.3 on WordPress Parameter osd_subscribe_options_subscribers.php osd_subscribe_message cross site scripting

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.1	$0-$5k	0.00

Summaryinfo

A vulnerability was found in OSD Subscribe Plugin up to 1.2.3 on WordPress. It has been declared as problematic. Affected by this vulnerability is an unknown functionality of the file ~/options/osd_subscribe_options_subscribers.php of the component Parameter Handler. Such manipulation of the argument osd_subscribe_message leads to cross site scripting. This vulnerability is listed as CVE-2021-38351. The attack may be performed from remote. There is no available exploit. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in OSD Subscribe Plugin up to 1.2.3 on WordPress (WordPress Plugin). Affected by this issue is some unknown processing of the file ~/options/osd_subscribe_options_subscribers.php of the component Parameter Handler. The manipulation of the argument osd_subscribe_message with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. Impacted is integrity.

The weakness was presented 09/10/2021. The advisory is shared for download at wordfence.com. This vulnerability is handled as CVE-2021-38351 since 08/09/2021. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1059.007.

By approaching the search of inurl:~/options/osd_subscribe_options_subscribers.php it is possible to find vulnerable targets with Google Hacking.

Applying a patch is able to eliminate this problem. The bugfix is ready for download at plugins.trac.wordpress.org.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

WordPress Plugin

Name

OSD Subscribe Plugin

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.2
VulDB Meta Temp Score: 5.1

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 6.1
CNA Vector (Wordfence): 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Cross site scripting
CWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined
Google Hack: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: plugins.trac.wordpress.org

Timelineinfo

08/09/2021 🔍
09/10/2021 +32 days 🔍
09/10/2021 +0 days 🔍
09/16/2021 +6 days 🔍

Sourcesinfo

Advisory: wordfence.com
Status: Confirmed

CVE: CVE-2021-38351 (🔍)
GCVE (CVE): GCVE-0-2021-38351
GCVE (VulDB): GCVE-100-182468

Entryinfo

Created: 09/10/2021 18:38
Updated: 09/16/2021 08:36
Changes: 09/10/2021 18:38 (52), 09/16/2021 08:36 (1)
Complete: 🔍
Cache ID: 216::103