CVE-2020-5283

LOW

ViewVC < 1.1.28 - Cross-Site Scripting in CVS show_subdir_lastmod

Title source: llm
STIX 2.1

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.

References (4)

Core 4
Core References
Mitigation, Patch, Third Party Advisory x_refsource_confirm
https://github.com/viewvc/viewvc/security/advisories/GHSA-xpxf-fvqv-7mfg
Exploit, Issue Tracking, Third Party Advisory x_refsource_misc
https://github.com/viewvc/viewvc/issues/211

Scores

CVSS v3 3.1
EPSS 0.0122
EPSS Percentile 64.8%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:L/A:N

Details

CWE
CWE-79 CWE-80
Status published
Products (1)
viewvc/viewvc < 1.1.28
Published Apr 03, 2020
Tracked Since Feb 18, 2026