What is the CVSS score of CVE-2020-5283?

CVE-2020-5283 has a CVSS 3.1 base score of 3.5 (Low). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:N. EPSS exploitation probability: 1.2%.

Is there a public PoC exploit available for CVE-2020-5283?

Yes, a public proof-of-concept exploit is available for CVE-2020-5283. Prioritise patching immediately. EPSS: 1.2%.

Is there a patch available for CVE-2020-5283?

Yes, a patch is available for CVE-2020-5283. Update the affected software to the latest version immediately.

Viewvc CVE-2020-5283

LOW

Basic XSS (CWE-80)

2020-04-03 security-advisories@github.com

XSS Viewvc

3.5

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

3.5 LOW

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

Required

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

CVE Published

Apr 03, 2020 - 00:15 nvd

LOW 3.5

DescriptionNVD

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.

AnalysisAI

ViewVC before versions 1.1.28 and 1.2.1 has a XSS vulnerability in CVS show_subdir_lastmod support. Rated low severity (CVSS 3.5), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available.

Technical ContextAI

This vulnerability is classified under CWE-80. 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. Affected products include: Viewvc.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.