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CVE-2020-5283

3.1 · LOW

ViewVC before versions 1.1.28 and 1.2.1 has a XSS vulnerability in CVS show_subdir_lastmod support.

Published Apr 3, 2020CWE-80EPSS 1.36%

Overview

CVE-2020-5283 is a low-severity vulnerability. It was published on April 3, 2020 and has a CVSS 3.1 base score of 3.1 (LOW).

This vulnerability has a CVSS 3.1 base score of 3.1, rated LOW. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

ViewVC before versions 1.1.28 and 1.2.1 has a XSS vulnerability in CVS show_subdir_lastmod support. The impact of this vulnerability is mitigated by the need for an attacker to have commit privileges to a CVS repository exposed by an otherwise trusted ViewVC instance that also has the `show_subdir_lastmod` feature enabled. The attack vector involves files with unsafe names (names that, when embedded into an HTML stream, would cause the browser to run unwanted code), which themselves can be challenging to create. This vulnerability is patched in versions 1.2.1 and 1.1.28.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/viewvc/viewvc/commit/ad0f966e9a997b17d853a6972ea283d4dcd70fa8GitHubgithub.com/viewvc/viewvc/issues/211GitHubgithub.com/viewvc/viewvc/security/advisories/GHSA-xpxf-fvqv-7mfgReflists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2Q2STF2MKT24HXZ3YZIU7CN6F6QM67I5/GitHubgithub.com/viewvc/viewvc/commit/ad0f966e9a997b17d853a6972ea283d4dcd70fa8GitHubgithub.com/viewvc/viewvc/issues/211GitHubgithub.com/viewvc/viewvc/security/advisories/GHSA-xpxf-fvqv-7mfgReflists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2Q2STF2MKT24HXZ3YZIU7CN6F6QM67I5/

How CyberStrike helps

Frequently asked questions

What is CVE-2020-5283?

CVE-2020-5283 is a low-severity vulnerability. It was published on April 3, 2020 and has a CVSS 3.1 base score of 3.1 (LOW).

How severe is CVE-2020-5283?

This vulnerability has a CVSS 3.1 base score of 3.1, rated LOW. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2020-5283?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2020-5283?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2020-5283 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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