UltimateMember Plugin 2.0 on WordPress um-image-upload.php $temp 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.
5.2$0-$5k0.00

Summaryinfo

A vulnerability has been found in UltimateMember Plugin 2.0 on WordPress and classified as problematic. This vulnerability affects unknown code in the library core/lib/upload/um-image-upload.php. The manipulation of the argument $temp as part of Variable leads to cross site scripting. This vulnerability was named CVE-2018-6943. The attack can be initiated remotely. There is no exploit available. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Detailsinfo

A vulnerability, which was classified as problematic, was found in UltimateMember Plugin 2.0 on WordPress (WordPress Plugin). This affects some unknown processing in the library core/lib/upload/um-image-upload.php. The manipulation of the argument $temp as part of a Variable leads to a cross site scripting vulnerability. CWE is classifying the issue as 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. This is going to have an impact on integrity. The summary by CVE is:

core/lib/upload/um-image-upload.php in the UltimateMember plugin 2.0 for WordPress has a cross-site scripting vulnerability because it fails to properly sanitize user input passed to the $temp variable.

The bug was discovered 02/10/2018. The weakness was released 02/16/2018 (Website). It is possible to read the advisory at packetstormsecurity.com. This vulnerability is uniquely identified as CVE-2018-6943 since 02/12/2018. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1059.007 according to MITRE ATT&CK.

The vulnerability was handled as a non-public zero-day exploit for at least 6 days. During that time the estimated underground price was around $0-$5k. By approaching the search of inurl:core/lib/upload/um-image-upload.php it is possible to find vulnerable targets with Google Hacking.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Entry connected to this vulnerability is available at VDB-113512. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

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

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

NVD Base Score: 6.1
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
unlockunlockunlockunlockunlockunlock
unlockunlockunlockunlockunlockunlock
unlockunlockunlockunlockunlockunlock

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

NVD Base Score: 🔍

Exploitinginfo

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

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined
Google Hack: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Dayunlockunlockunlockunlock
Todayunlockunlockunlockunlock

OpenVAS ID: 881434
OpenVAS Name: WordPress Ultimate Member Plugin 2.0 Multiple XSS Vulnerabilities
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

02/10/2018 🔍
02/12/2018 +2 days 🔍
02/16/2018 +4 days 🔍
02/16/2018 +0 days 🔍
02/17/2018 +1 days 🔍
02/08/2023 +1817 days 🔍

Sourcesinfo

Advisory: 146403
Status: Not defined

CVE: CVE-2018-6943 (🔍)
GCVE (CVE): GCVE-0-2018-6943
GCVE (VulDB): GCVE-100-113511
See also: 🔍

Entryinfo

Created: 02/17/2018 11:19 AM
Updated: 02/08/2023 11:09 AM
Changes: 02/17/2018 11:19 AM (64), 01/06/2020 03:28 PM (1), 02/08/2023 11:09 AM (3)
Complete: 🔍
Cache ID: 18:6D4:40

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Want to stay up to date on a daily basis?

Enable the mail alert feature now!