What is the CVSS score of CVE-2020-35650?

CVE-2020-35650 has a CVSS 3.1 base score of 6.1 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N. EPSS exploitation probability: 0.8%.

Uncanny Groups For Learndash CVE-2020-35650

MEDIUM

Cross-site Scripting (XSS) (CWE-79)

2020-12-23 cve@mitre.org

PHP XSS Uncanny Groups For Learndash Uncannyowl

6.1

CVSS 3.1 · NVD

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Vulnerability Assessment

Weakness	CWE CWE-79 OWASP Top 10:2025 A05:2025 - Injection ASVS 5.0 V1 - Encoding and Sanitization Output encoding, context-aware escaping MITRE ATT&CK 2 techniques across 2 tactics: Initial Access, Execution The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. Sign in to read
Impact	CVSS score of 6.1 (MEDIUM). Attack characteristics: network attack vector, low complexity, no privileges required, user interaction required.
Exploit ScenarioDerived	A remote attacker could inject malicious scripts into web pages viewed by other users by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).

No patch listed yet 0.8% exploitation probability (EPSS)

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AnalysisAI

Multiple cross-site scripting (XSS) vulnerabilities in Uncanny Groups for LearnDash before v3.7 allow authenticated remote attackers to inject arbitrary JavaScript or HTML via the ulgm_code_redeem. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified as Cross-Site Scripting (XSS) (CWE-79), which allows attackers to inject malicious scripts into web pages viewed by other users. Multiple cross-site scripting (XSS) vulnerabilities in Uncanny Groups for LearnDash before v3.7 allow authenticated remote attackers to inject arbitrary JavaScript or HTML via the ulgm_code_redeem POST Parameter in user-code-redemption.php, the ulgm_user_first POST Parameter in user-registration-form.php, the ulgm_user_last POST Parameter in user-registration-form.php, the ulgm_user_email POST Parameter in user-registration-form.php, the ulgm_code_registration POST Parameter in user-registration-form.php, the ulgm_terms_conditions POST Parameter in user-registration-form.php, the _ulgm_total_seats POST Parameter in frontend-uo_groups_buy_courses.php, the uncanny_group_signup_user_first POST Parameter in group-registration-form.php, the uncanny_group_signup_user_last POST Parameter in group-registration-form.php, the uncanny_group_signup_user_login POST Parameter in group-registration-form.php, the uncanny_group_signup_user_email POST Parameter in group-registration-form.php, the success-invited GET Parameter in frontend-uo_groups.php, the bulk-errors GET Parameter in frontend-uo_groups.php, or the message GET Parameter in frontend-uo_groups.php. Affected products include: Uncannyowl Uncanny Groups For Learndash.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 6.1 MEDIUM

AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

DescriptionNVD

Multiple cross-site scripting (XSS) vulnerabilities in Uncanny Groups for LearnDash before v3.7 allow authenticated remote attackers to inject arbitrary JavaScript or HTML via the ulgm_code_redeem POST Parameter in user-code-redemption.php, the ulgm_user_first POST Parameter in user-registration-form.php, the ulgm_user_last POST Parameter in user-registration-form.php, the ulgm_user_email POST Parameter in user-registration-form.php, the ulgm_code_registration POST Parameter in user-registration-form.php, the ulgm_terms_conditions POST Parameter in user-registration-form.php, the _ulgm_total_seats POST Parameter in frontend-uo_groups_buy_courses.php, the uncanny_group_signup_user_first POST Parameter in group-registration-form.php, the uncanny_group_signup_user_last POST Parameter in group-registration-form.php, the uncanny_group_signup_user_login POST Parameter in group-registration-form.php, the uncanny_group_signup_user_email POST Parameter in group-registration-form.php, the success-invited GET Parameter in frontend-uo_groups.php, the bulk-errors GET Parameter in frontend-uo_groups.php, or the message GET Parameter in frontend-uo_groups.php.

Threat Intelligence Overview

EPSS Score

0.8%

Top 49% exploitable

Data Quality

3 sources

Confidence: Low

NVD

CVE.org

EPSS

GitHub

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity MEDIUM

CISA KEV No

Public POC No

EPSS 0.8%

Patch available No

Active threat No

Deciding rule

MEDIUM severity (CVSS 4.0-6.9)

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.