XSS Vulnerability in GNU Mailman 2.x Leading to Potential Security Risks
CVE-2020-12137

6.1MEDIUM

Key Information:

Vendor

Gnu
Status
Mailman
Vendor
CVE Published:
24 April 2020

What is CVE-2020-12137?

GNU Mailman versions prior to 2.1.30 are susceptible to a Cross-Site Scripting (XSS) vulnerability caused by mishandling of file attachments with the '.obj' extension. The lack of proper MIME type designation may lead the browser to misinterpret the content as HTML, enabling the execution of unexpected JavaScript code. This security flaw can potentially allow attackers to execute scripts in the context of users accessing the list archive, posing a significant security risk.

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References

https://www.openwall.com/lists/oss-security/2020/02/24/2
x_refsource_MISC
https://www.openwall.com/lists/oss-security/2020/02/24/3
x_refsource_MISC
http://bazaar.launchpad.net/~mailman-coders/mailman/2.1/v...
x_refsource_MISC

EPSS Score

5% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
6.1
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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