XSS vulnerability in CVS show_subdir_lastmod support
CVE-2020-5283

3.1LOW

Key Information:

Vendor

Viewvc

Status
Viewvc
Vendor
CVE Published:
3 April 2020

What is CVE-2020-5283?

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.

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Deploy the Patch

Affected Version(s)

viewvc < 1.1.28 < 1.1.28

viewvc >= 1.2.0, < 1.2.1 < 1.2.0, 1.2.1

References

https://github.com/viewvc/viewvc/security/advisories/GHSA...
x_refsource_CONFIRM
https://github.com/viewvc/viewvc/issues/211
x_refsource_MISC
https://github.com/viewvc/viewvc/commit/ad0f966e9a997b17d...
x_refsource_MISC

CVSS V3.1

Score:
3.1
Severity:
LOW
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
High
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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