ViewVC is a browser interface for CVS and Subversion version control repositories. In versions 1.1.0 through 1.1.31 and 1.2.0 through 1.2.3, the standalone.py script provided in the ViewVC distribution can expose the contents of the host server's filesystem though a directory traversal-style attack. This is fixed in versions 1.1.31 and 1.2.4.

ViewVC is a browser interface for CVS and Subversion version control repositories. Versions prior to 1.2.3 and 1.1.30 are vulnerable to cross-site scripting. The impact of this vulnerability is mitigated by the need for an attacker to have commit privileges to a Subversion repository exposed by an otherwise trusted ViewVC instance. 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. Users should update to at least version 1.2.3 (if they are using a 1.2.x version of ViewVC) or 1.1.30 (if they are using a 1.1.x version).

ViewVC 1.0.x is no longer supported, so users of that release lineage should implement one of the following workarounds. Users can edit their ViewVC EZT view templates to manually HTML-escape changed path "copyfrom paths" during rendering. Locate in your template set's revision.ezt file references to those changed paths, and wrap them with [format "html"] and [end]. For most users, that means that references to [changes.copypath] will become [format "html"][changes.copypath][end]. (This workaround should be reverted after upgrading to a patched version of ViewVC, else "copyfrom path" names will be doubly escaped.)

ViewVC, a browser interface for CVS and Subversion version control repositories, as a cross-site scripting vulnerability that affects versions prior to 1.2.2 and 1.1.29. The impact of this vulnerability is mitigated by the need for an attacker to have commit privileges to a Subversion repository exposed by an otherwise trusted ViewVC instance. 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. Users should update to at least version 1.2.2 (if they are using a 1.2.x version of ViewVC) or 1.1.29 (if they are using a 1.1.x version).

ViewVC 1.0.x is no longer supported, so users of that release lineage should implement a workaround. Users can edit their ViewVC EZT view templates to manually HTML-escape changed paths during rendering. Locate in your template set's revision.ezt file references to those changed paths, and wrap them with [format "html"] and [end]. For most users, that means that references to [changes.path] will become [format "html"][changes.path][end]. (This workaround should be reverted after upgrading to a patched version of ViewVC, else changed path names will be doubly escaped.)

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

viewvc 1.0.3 allows improper access control to files in a repository when using the "forbidden" configuration option.

Cross-site scripting (XSS) vulnerability in the navpath function in lib/viewvc.py in ViewVC before 1.0.14 and 1.1.x before 1.1.26 allows remote attackers to inject arbitrary web script or HTML via the navdata name.

Cross-site scripting (XSS) vulnerability in the "extra" details in the DiffSource.getrow function in lib/viewvc.py in ViewVC 1.0.x before 1.0.13 and 1.1.x before 1.1.16 allows remote authenticated users with repository commit access to inject arbitrary web script or HTML via the "function name" line.

The remote SVN views functionality (lib/vclib/svn/svnra.py) in ViewVC before 1.1.15 does not properly perform authorization, which allows remote attackers to bypass intended access restrictions via unspecified vectors.

The SVN revision view (lib/vclib/svn/svnrepos.py) in ViewVC before 1.1.15 does not properly handle log messages when a readable path is copied from an unreadable path, which allows remote attackers to obtain sensitive information, related to a "log msg leak."

ViewVC before 1.1.11 allows remote attackers to bypass the cvsdb rowlimit configuration setting, and consequently conduct resource-consumption attacks, via the limit parameter, as demonstrated by a "query revision history" request.

Cross-site scripting (XSS) vulnerability in ViewVC 1.1 before 1.1.5 and 1.0 before 1.0.11, when the regular expression search functionality is enabled, allows remote attackers to inject arbitrary web script or HTML via vectors related to "searchre input," a different vulnerability than CVE-2010-0736.

Cross-site scripting (XSS) vulnerability in the viewqueryform function in lib/viewvc.py in ViewVC before 1.0.10, and 1.1.x before 1.1.4, allows remote attackers to inject arbitrary web script or HTML via "user-provided input."

query.py in the query interface in ViewVC before 1.1.3 does not reject configurations that specify an unsupported authorizer for a root, which might allow remote attackers to bypass intended access restrictions via a query.

ViewVC before 1.1.3 composes the root listing view without using the authorizer for each root, which might allow remote attackers to discover private root names by reading this view.

Cross-site scripting (XSS) vulnerability in viewvc.py in ViewVC 1.0 before 1.0.9 and 1.1 before 1.1.2 allows remote attackers to inject arbitrary web script or HTML via the view parameter. NOTE: some of these details are obtained from third party information.

Unspecified vulnerability in ViewVC 1.0 before 1.0.9 and 1.1 before 1.1.2 has unknown impact and remote attack vectors related to "printing illegal parameter names and values."

lib/viewvc.py in ViewVC 1.0.5 uses the content-type parameter in the HTTP request for the Content-Type header in the HTTP response, which allows remote attackers to cause content to be misinterpreted by the browser via a content-type parameter that is inconsistent with the requested object. NOTE: this issue might not be a vulnerability, since it requires attacker access to the repository that is being viewed.

ViewVC before 1.0.5 stores sensitive information under the web root with insufficient access control, which allows remote attackers to read files and list folders under the hidden CVSROOT folder.

ViewVC before 1.0.5 includes "all-forbidden" files within search results that list CVS or Subversion (SVN) commits, which allows remote attackers to obtain sensitive information.

ViewVC before 1.0.5 provides revision metadata without properly checking whether access was intended, which allows remote attackers to obtain sensitive information by reading (1) forbidden pathnames in the revision view, (2) log history that can only be reached by traversing a forbidden object, or (3) forbidden diff view path parameters.

ViewVC 1.0.2 and earlier does not specify a charset in its HTTP headers or HTML documents, which allows remote attackers to conduct cross-site scripting (XSS) attacks that inject arbitrary UTF-7 encoded JavaScript code via a view.